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    <title>TJB-INC - Water Garden &amp;amp; Pond Products / Liner, Underlayment, Seam &amp;amp; Repair Supplies / Needle Punched Underlayment (Liner Protector) / All Products</title>
    <copyright>Copyright 2026, TJB-INC</copyright>
    <description>&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="6"&gt;Needle Punched Underlayment&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080" size="4"&gt;(Products available at bottom of this page)&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;To help protect your EPDM Fish Safe Liner from unwanted punctures, first put down this 4 oz Nylon Felt Underlayment.&amp;nbsp; It will never rot unlike newspapers, carpet padding, &amp;amp; carboard.&amp;nbsp; This soft, polyethylene fabric will last 20+ years under your pond liner. It is a 3-dimensional pond underlayment that allows gas to escape. It has a non-slippery surface and provides protection for the liner from rocks and other sharp objects, spreads easily, and saves time compared to using newspaper or sand. This is a non-woven, needle-punched Geotextile fabric.&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="4"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC&lt;/strong&gt; sells underlayment in three different ways.&lt;/font&gt;&lt;/font&gt;&amp;nbsp;&lt;/p&gt;&lt;ol aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;We offer pre-cut sizes that are boxed and can be shipped by UPS.&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;We sell bulk rolls of different widths and lengths that are shipped by truck freight.&amp;nbsp; These are great for large projects or installation contractors&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;Custom Cut lengths in either 7' 5" or 14' 11" widths&lt;/li&gt;&lt;/ol&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&amp;nbsp;&lt;/p&gt;&lt;hr aria-level="0" aria-posinset="0" aria-setsize="0" noshade="true"&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&amp;nbsp;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff" size="4"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC INSTALLATION TIPS:&lt;/strong&gt;&lt;/font&gt;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;We use this underlayment in all of our water feature installations.&amp;nbsp; &lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Anywhere we install EPDM liner, we first put down 1 or more layers of the underlayment.&amp;nbsp; The amount of layers is determined by how clean the soil is under the liner.&amp;nbsp; If there is not a lot of rocks or roots, one layer will do.&amp;nbsp; If you are installing pond liner over rock, roots, or sharp debris, &amp;nbsp;then we recommend putting a layer of sand or stone dust down first on all of the horizontal surfaces.&amp;nbsp; Then follow-up with a layer of underlayment.&amp;nbsp; If your sidewalls are bad, then sand won't work for vertical surfaces.&amp;nbsp; This is where we would double or triple layer the underlayment so we are protected against punctures in the liner from buried debris.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;If you are placing large rocks in the pond, cut a piece of unerlayment to go between the rock and the pond liner.&amp;nbsp; If the rock is very rough, use several layers of fabric.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Most punctures are caused when you go to re-position a rock when it is on top of the liner.&amp;nbsp; As you swivel the rock, it grabs the liner and creates a tear.&amp;nbsp; This can still happen if you&amp;nbsp;use a scrap piece of&amp;nbsp;pond liner.&amp;nbsp; Rubber against rubber grabs and can still tear the pond liner.&amp;nbsp;&amp;nbsp;That is why &lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC&lt;/strong&gt; recommends using a piece of underlayment (instead of extra liner) under the larger rocks.&amp;nbsp; Do not worry how it looks.&amp;nbsp; When you add the&amp;nbsp;smaller filler rocks and the gravel, the piece of underlayment you used will be covered up.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="4"&gt;Underlayment is cheap compared to having to go back and finding a leak(s) &amp;amp; repairing it!&lt;/font&gt;&lt;/strong&gt;&amp;nbsp;&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;To view a printable .pdf copy of the MSDS (Material Safety Data Sheet) that has been filed with the EPA, click on the link at the end of this statement.&amp;nbsp; To return to this screen, click on your browser's BACK arrow (located in the upper left corner of your screen). &lt;/font&gt;"&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;a aria-level="0" aria-posinset="0" aria-setsize="0" href="http://www.aquascapeinc.com/upload/Underlayment_MSDS.pdf"&gt;DOWNLOAD MSDS&lt;/a&gt;&lt;/strong&gt;"&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&amp;nbsp;&lt;/p&gt;&lt;object width="425" height="344"&gt;&lt;param name="movie" value="http://www.youtube.com/v/FStXSb3-hYQ&amp;hl=en&amp;fs=1"&gt;&lt;param name="allowFullScreen" value="true"&gt;&lt;param name="allowscriptaccess" value="always"&gt;&lt;embed src="http://www.youtube.com/v/FStXSb3-hYQ&amp;hl=en&amp;fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"&gt;&lt;/object&gt;</description>
    <link>https://Shop.TJB-INC.com/needle-punched-underlayment-liner-protector-c55all.aspx</link>
    <pubDate>Wed, 23 Sep 2026 01:34:46 GMT</pubDate>
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      <link>https://Shop.TJB-INC.com/aquascapes-pond-owners-manual-for-water-garden--pond-lovers-p2060.aspx</link>
      <guid isPermaLink="false">Product2060</guid>
      <pubDate>Sat, 23 Mar 2013 10:08:00 GMT</pubDate>
      <title>Aquascape's Pond Owners Manual For Water Garden &amp; Pond Lovers</title>
      <description>&lt;div style="float:left"&gt;&lt;a class="url" href="https://Shop.TJB-INC.com/aquascapes-pond-owners-manual-for-water-garden--pond-lovers-p2060.aspx"&gt;&lt;img src="//cdn.nexternal.com/tjb/images/slide-1-7281.jpg" WIDTH=125 alt="Aquascape's Pond Owners Manual For Water Garden &amp; Pond Lovers" border="0" hspace="3"&gt;&lt;/a&gt;&lt;/div&gt;&lt;span class="riRssTitle"&gt;&lt;a href="https://Shop.TJB-INC.com/aquascapes-pond-owners-manual-for-water-garden--pond-lovers-p2060.aspx"&gt;Aquascape's Pond Owners Manual For Water Garden &amp; Pond Lovers&lt;/a&gt;&lt;/span&gt;&lt;br&gt;&lt;a href="https://Shop.TJB-INC.com/aquascapes-pond-owners-manual-for-water-garden--pond-lovers-p2060.aspx"&gt;Buy Now:&lt;/a&gt; &lt;span color="#990000"&gt;&lt;b&gt;$3.99&lt;/b&gt;&lt;/span&gt; &lt;br /&gt;&lt;br /&gt;&lt;div&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="6"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;Aquascape's&amp;nbsp;&lt;/strong&gt;&lt;/font&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="6"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;Pond Owners Manual&lt;/strong&gt;&lt;/font&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;We offer a copy of the full color,&amp;nbsp;24 pg "Pond Owner's Handbook" in both as a printed booklet and as a download in a .pdf. &amp;nbsp;This handbook covers all of the topics that a pond owner will need to know about.&amp;nbsp;&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;div aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;Pond Ecology &amp;amp; the Aquascape System&lt;/font&gt;&lt;/strong&gt;&lt;/div&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;div aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;Pond Fish - Health &amp;amp; Care&lt;/font&gt;&lt;/strong&gt;&lt;/div&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;div aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;Aquatic Plants&lt;/font&gt;&lt;/strong&gt;&lt;/div&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;div aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;Pond Myths&lt;/font&gt;&lt;/strong&gt;&lt;/div&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;div aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;Maintenance&lt;/font&gt;&lt;/strong&gt;&lt;/div&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;div aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;Pump Trouble Shooting&lt;/font&gt;&lt;/strong&gt;&lt;/div&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;To download the .pdf file,&lt;/font&gt; &lt;a aria-level="0" aria-posinset="0" aria-setsize="0" href="http://www.aquascapeinc.com/upload/29952_Pond_Owners_Manual_FINAL.pdf" target="_blank"&gt;CLICK HERE&lt;/a&gt;.&lt;/strong&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;/strong&gt;&amp;nbsp;&lt;iframe width="640" height="360" src="http://www.youtube.com/embed/NmaWhLXYQ5M?feature=player_detailpage" frameborder="0" allowfullscreen=""&gt;&lt;/iframe&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;b&gt;&lt;font size="5"&gt;To view more Aquascape videos&amp;nbsp;&lt;a href="http://www.youtube.com/user/Aquascape4" target="_blank"&gt;CLICK HERE&lt;/a&gt;&lt;/font&gt;&lt;/b&gt;&lt;/p&gt;&lt;br /&gt;&lt;br /&gt;Visit &lt;a href="https://Shop.TJB-INC.com/needle-punched-underlayment-liner-protector-c55all.aspx"&gt;Needle Punched Underlayment (Liner Protector)&lt;/a&gt; to see additional products in this category.&lt;/div&gt;</description>
    </item>
    <item>
      <link>https://Shop.TJB-INC.com/custom-cut-needle-punched-water-garden--pond-underlayment-fabric-14-11-wide-p1147.aspx</link>
      <guid isPermaLink="false">Product1147</guid>
      <pubDate>Sat, 19 Apr 2008 11:24:00 GMT</pubDate>
      <title>Custom Cut Needle Punched Water Garden &amp; Pond Underlayment Fabric (14' 11" wide)</title>
      <description>&lt;div style="float:left"&gt;&lt;a class="url" href="https://Shop.TJB-INC.com/custom-cut-needle-punched-water-garden--pond-underlayment-fabric-14-11-wide-p1147.aspx"&gt;&lt;img src="//cdn.nexternal.com/tjb/images/Underlayment3.jpg" WIDTH=100 alt="Custom Cut Needle Punched Water Garden &amp; Pond Underlayment Fabric (14' 11" wide)" border="0" hspace="3"&gt;&lt;/a&gt;&lt;/div&gt;&lt;span class="riRssTitle"&gt;&lt;a href="https://Shop.TJB-INC.com/custom-cut-needle-punched-water-garden--pond-underlayment-fabric-14-11-wide-p1147.aspx"&gt;Custom Cut Needle Punched Water Garden &amp; Pond Underlayment Fabric (14' 11" wide)&lt;/a&gt;&lt;/span&gt;&lt;br&gt;&lt;a href="https://Shop.TJB-INC.com/custom-cut-needle-punched-water-garden--pond-underlayment-fabric-14-11-wide-p1147.aspx"&gt;Buy Now:&lt;/a&gt; &lt;span color="#990000"&gt;&lt;b&gt;$6.75&lt;/b&gt;&lt;/span&gt; &lt;br /&gt;&lt;br /&gt;&lt;div&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="6"&gt;Custom Cut&amp;nbsp;Underlayment Fabric - 14' 11" Wide Roll&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&amp;nbsp;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;This soft, polyethylene fabric will last 20+ years under your liner. It is a 3-dimensional underlayment that allows gases to escape. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;It has a non-slippery surface and provides protection for the liner from rocks and other sharp objects, spreads easily, and saves time compared to using newspaper or sand. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;It also will not decay like newspaper or carpet padding &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;This is a non-woven, 4-oz. needle-punched Geotextile. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;We sell this Custom Cut Underlayment for $0.45 per sqft.&amp;nbsp; &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#800000"&gt;If you want a cut piece that is 4'&amp;nbsp;long by 14' 11" wide, then order &lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="4"&gt;4&lt;/font&gt;&lt;/strong&gt; as your quanity in the box above. &amp;amp; we will ship you a custom cut piece of underlayment that is 4' long x 14' 11" wide.&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080" size="5"&gt;SORRY, NO RETURNS ON CUSTOM CUT UNDERLAYMENT&lt;/font&gt;&lt;/p&gt;&lt;hr aria-level="0" aria-posinset="0" aria-setsize="0" noshade="true"&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff" size="4"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC INSTALLATION TIPS:&lt;/strong&gt;&lt;/font&gt;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;We use this underlayment in all of our water feature installations.&amp;nbsp; &lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Anywhere we install EPDM liner, we first put down 1 or more layers of the underlayment.&amp;nbsp; The amount of layers is determined by how clean the soil is under the liner.&amp;nbsp; If there is not a lot of rocks or roots, one layer will do.&amp;nbsp; If you are installing pond liner over rock, roots, or sharp debris, &amp;nbsp;then we recommend putting a layer of sand or stone dust down first on all of the horizontal surfaces.&amp;nbsp; Then follow-up with a layer of underlayment.&amp;nbsp; If your sidewalls are bad, then sand won't work for vertical surfaces.&amp;nbsp; This is where we would double or triple layer the underlayment so we are protected against punctures in the liner from buried debris.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;If you are placing large rocks in the pond, cut a piece of unerlayment to go between the rock and the pond liner.&amp;nbsp; If the rock is very rough, use several layers of fabric.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Most punctures are caused when you go to re-position a rock when it is on top of the liner.&amp;nbsp; As you swivel the rock, it grabs the liner and creates a tear.&amp;nbsp; This can still happen if you&amp;nbsp;use a scrap piece of&amp;nbsp;pond liner.&amp;nbsp; Rubber against rubber grabs and can still tear the pond liner.&amp;nbsp;&amp;nbsp;That is why &lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC&lt;/strong&gt; recommends using a piece of underlayment (instead of extra liner) under the larger rocks.&amp;nbsp; Do not worry how it looks.&amp;nbsp; When you add the&amp;nbsp;smaller filler rocks and the gravel, the piece of underlayment you used will be covered up.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="4"&gt;Underlayment is cheap compared to having to go back and finding a leak(s) &amp;amp; repairing it!&lt;/font&gt;&lt;/strong&gt;&amp;nbsp;&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;To view a printable .pdf copy of the MSDS (Material Safety Data Sheet) that has been filed with the EPA, click on the link at the end of this statement.&amp;nbsp; To return to this screen, click on your browser's BACK arrow (located in the upper left corner of your screen). &lt;/font&gt;"&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;a aria-level="0" aria-posinset="0" aria-setsize="0" href="http://www.aquascapeinc.com/upload/Underlayment_MSDS.pdf"&gt;DOWNLOAD MSDS&lt;/a&gt;&lt;/strong&gt;"&lt;/p&gt;&lt;object width="425" height="344"&gt;&lt;param name="movie" value="http://www.youtube.com/v/FStXSb3-hYQ&amp;hl=en&amp;fs=1"&gt;&lt;param name="allowFullScreen" value="true"&gt;&lt;param name="allowscriptaccess" value="always"&gt;&lt;embed src="http://www.youtube.com/v/FStXSb3-hYQ&amp;hl=en&amp;fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"&gt;&lt;/object&gt;&lt;br /&gt;&lt;br /&gt;Visit &lt;a href="https://Shop.TJB-INC.com/needle-punched-underlayment-liner-protector-c55all.aspx"&gt;Needle Punched Underlayment (Liner Protector)&lt;/a&gt; to see additional products in this category.&lt;/div&gt;</description>
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    <item>
      <link>https://Shop.TJB-INC.com/custom-cut-needle-punched-water-garden--pond-underlayment-fabric-7-5-wide-p1146.aspx</link>
      <guid isPermaLink="false">Product1146</guid>
      <pubDate>Sat, 19 Apr 2008 11:15:00 GMT</pubDate>
      <title>Custom Cut Needle Punched Water Garden &amp; Pond Underlayment Fabric (7' 5" wide)</title>
      <description>&lt;div style="float:left"&gt;&lt;a class="url" href="https://Shop.TJB-INC.com/custom-cut-needle-punched-water-garden--pond-underlayment-fabric-7-5-wide-p1146.aspx"&gt;&lt;img src="//cdn.nexternal.com/tjb/images/Underlayment3.jpg" WIDTH=100 alt="Custom Cut Needle Punched Water Garden &amp; Pond Underlayment Fabric (7' 5" wide)" border="0" hspace="3"&gt;&lt;/a&gt;&lt;/div&gt;&lt;span class="riRssTitle"&gt;&lt;a href="https://Shop.TJB-INC.com/custom-cut-needle-punched-water-garden--pond-underlayment-fabric-7-5-wide-p1146.aspx"&gt;Custom Cut Needle Punched Water Garden &amp; Pond Underlayment Fabric (7' 5" wide)&lt;/a&gt;&lt;/span&gt;&lt;br&gt;&lt;a href="https://Shop.TJB-INC.com/custom-cut-needle-punched-water-garden--pond-underlayment-fabric-7-5-wide-p1146.aspx"&gt;Buy Now:&lt;/a&gt; &lt;span color="#990000"&gt;&lt;b&gt;$3.40&lt;/b&gt;&lt;/span&gt; &lt;br /&gt;&lt;br /&gt;&lt;div&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="6"&gt;Custom Cut&amp;nbsp;Underlayment Fabric - 7' 5" Wide Roll&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&amp;nbsp;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;This soft, polyethylene fabric will last 20+ years under your liner. It is a 3-dimensional underlayment that allows gases to escape. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;It has a non-slippery surface and provides protection for the liner from rocks and other sharp objects, spreads easily, and saves time compared to using newspaper or sand. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;It also will not decay like newspaper or carpet padding &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;This is a non-woven, 4-oz. needle-punched Geotextile. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;We sell this Custom Cut Underlayment for $0.45 per sqft.&amp;nbsp; &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#800000"&gt;If you want a cut piece that is 4'&amp;nbsp;long by 7' 5" wide, then order &lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="4"&gt;4&lt;/font&gt;&lt;/strong&gt; as your quanity in the box above. &amp;amp; we will ship you a custom cut piece of underlayment that is 4' long x 7' 5" wide.&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080" size="5"&gt;SORRY, NO RETURNS ON CUSTOM CUT UNDERLAYMENT&lt;/font&gt;&lt;/p&gt;&lt;hr aria-level="0" aria-posinset="0" aria-setsize="0" noshade="true"&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff" size="4"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC INSTALLATION TIPS:&lt;/strong&gt;&lt;/font&gt;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;We use this underlayment in all of our water feature installations.&amp;nbsp; &lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Anywhere we install EPDM liner, we first put down 1 or more layers of the underlayment.&amp;nbsp; The amount of layers is determined by how clean the soil is under the liner.&amp;nbsp; If there is not a lot of rocks or roots, one layer will do.&amp;nbsp; If you are installing pond liner over rock, roots, or sharp debris, &amp;nbsp;then we recommend putting a layer of sand or stone dust down first on all of the horizontal surfaces.&amp;nbsp; Then follow-up with a layer of underlayment.&amp;nbsp; If your sidewalls are bad, then sand won't work for vertical surfaces.&amp;nbsp; This is where we would double or triple layer the underlayment so we are protected against punctures in the liner from buried debris.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;If you are placing large rocks in the pond, cut a piece of unerlayment to go between the rock and the pond liner.&amp;nbsp; If the rock is very rough, use several layers of fabric.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Most punctures are caused when you go to re-position a rock when it is on top of the liner.&amp;nbsp; As you swivel the rock, it grabs the liner and creates a tear.&amp;nbsp; This can still happen if you&amp;nbsp;use a scrap piece of&amp;nbsp;pond liner.&amp;nbsp; Rubber against rubber grabs and can still tear the pond liner.&amp;nbsp;&amp;nbsp;That is why &lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC&lt;/strong&gt; recommends using a piece of underlayment (instead of extra liner) under the larger rocks.&amp;nbsp; Do not worry how it looks.&amp;nbsp; When you add the&amp;nbsp;smaller filler rocks and the gravel, the piece of underlayment you used will be covered up.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="4"&gt;Underlayment is cheap compared to having to go back and finding a leak(s) &amp;amp; repairing it!&lt;/font&gt;&lt;/strong&gt;&amp;nbsp;&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;To view a printable .pdf copy of the MSDS (Material Safety Data Sheet) that has been filed with the EPA, click on the link at the end of this statement.&amp;nbsp; To return to this screen, click on your browser's BACK arrow (located in the upper left corner of your screen). &lt;/font&gt;"&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;a aria-level="0" aria-posinset="0" aria-setsize="0" href="http://www.aquascapeinc.com/upload/Underlayment_MSDS.pdf"&gt;DOWNLOAD MSDS&lt;/a&gt;&lt;/strong&gt;"&lt;/p&gt;&lt;object width="425" height="344"&gt;&lt;param name="movie" value="http://www.youtube.com/v/FStXSb3-hYQ&amp;hl=en&amp;fs=1"&gt;&lt;param name="allowFullScreen" value="true"&gt;&lt;param name="allowscriptaccess" value="always"&gt;&lt;embed src="http://www.youtube.com/v/FStXSb3-hYQ&amp;hl=en&amp;fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"&gt;&lt;/object&gt;&lt;br /&gt;&lt;br /&gt;Visit &lt;a href="https://Shop.TJB-INC.com/needle-punched-underlayment-liner-protector-c55all.aspx"&gt;Needle Punched Underlayment (Liner Protector)&lt;/a&gt; to see additional products in this category.&lt;/div&gt;</description>
    </item>
    <item>
      <link>https://Shop.TJB-INC.com/aquascape-needle-punched-water-garden-underlayment-fabric-rolls-for-water-gardens--ponds-p989.aspx</link>
      <guid isPermaLink="false">Product989</guid>
      <pubDate>Sun, 18 Nov 2007 12:14:00 GMT</pubDate>
      <title>Aquascape Needle-Punched Water Garden Underlayment Fabric (Rolls) for Water Gardens &amp; Ponds</title>
      <description>&lt;div style="float:left"&gt;&lt;a class="url" href="https://Shop.TJB-INC.com/aquascape-needle-punched-water-garden-underlayment-fabric-rolls-for-water-gardens--ponds-p989.aspx"&gt;&lt;img src="//cdn.nexternal.com/tjb/images/Underlayment%20roll1.jpg" WIDTH=100 alt="Aquascape Needle-Punched Water Garden Underlayment Fabric (Rolls) for Water Gardens &amp; Ponds" border="0" hspace="3"&gt;&lt;/a&gt;&lt;/div&gt;&lt;span class="riRssTitle"&gt;&lt;a href="https://Shop.TJB-INC.com/aquascape-needle-punched-water-garden-underlayment-fabric-rolls-for-water-gardens--ponds-p989.aspx"&gt;Aquascape Needle-Punched Water Garden Underlayment Fabric (Rolls) for Water Gardens &amp; Ponds&lt;/a&gt;&lt;/span&gt;&lt;br&gt;&lt;a href="https://Shop.TJB-INC.com/aquascape-needle-punched-water-garden-underlayment-fabric-rolls-for-water-gardens--ponds-p989.aspx"&gt;Buy Now:&lt;/a&gt; &lt;span color="#990000"&gt;&lt;b&gt;&lt;strike&gt;$899.99&lt;/strike&gt; &lt;span color="red"&gt;&lt;b&gt;$809.99&lt;/b&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt; &lt;br /&gt;&lt;br /&gt;&lt;div&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="6"&gt;Underlayment Fabric&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#c00000" size="4"&gt;For Larger Projects or Contractors. Shipped Truck Freight&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;This soft, polyethylene fabric will last 20+ years under your liner. It is a 3-dimensional underlayment that allows gases to escape. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;It has a non-slippery surface and provides protection for the liner from rocks and other sharp objects, spreads easily, and saves time compared to using newspaper or sand. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;It also will not decay like newspaper or carpet padding &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;This is a non-woven, 4-oz. needle-punched Geotextile. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;Available in 7.5' &amp;amp; 14' 11" wide rolls&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;We also custom cut sizes - please call for pricing.&lt;/li&gt;&lt;/ul&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff" size="4"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC INSTALLATION TIPS:&lt;/strong&gt;&lt;/font&gt;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;We use this underlayment in all of our water feature installations.&amp;nbsp; &lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Anywhere we install EPDN liner, we first put down 1 or more layers of the unerlayment.&amp;nbsp; The amount of layers is detirmined by how clean the soil is under the liner.&amp;nbsp; If there is not a lot of rocks or roots, one layer will do.&amp;nbsp; If you are installing pond liner over rock, then we recommend putting a layer of sand or stonedust down first on all of the horizontal surfaces.&amp;nbsp; The follow-up with a layer of underlayment.&amp;nbsp; If your sidewalls are bad, then sand won't work for vertical surfaces.&amp;nbsp; This is where we would double or triple the underlayment so we are protected against punctures in the liner from buried debris.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;If you are placing large rocks in the pond, cut a piece of unerlayment to go between the rock and the pond liner.&amp;nbsp; If the rock is very rough, use several layers of fabric.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Most puntures are caused when you go to re-position a rock.&amp;nbsp; As you swivel the rock, it grabs the liner and creates a tear.&amp;nbsp; This can still happen if you&amp;nbsp;use a scrap piece of&amp;nbsp;pond liner.&amp;nbsp; Rubber against rubber grabs an can still tear the pond liner.&amp;nbsp;&amp;nbsp;This is why TJB-INC recommends using a piece of underlayment under the larger rocks.&amp;nbsp; Do not worry how it looks.&amp;nbsp; When you add the&amp;nbsp;smaller filler rocks and the gravel, the underlayment you used will be covered up.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="4"&gt;Underlayment is cheap compared to having to go back and find a leak!&lt;/font&gt;&lt;/strong&gt;&amp;nbsp;&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;To view a printable .pdf copy of the MSDS (Material Safety Data Sheet) that has been filed with the EPA, click on the link at the end of this statement.&amp;nbsp; To return to this screen, click on your browser's BACK arrow (located in the upper left corner of your screen). &lt;/font&gt;"&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;a aria-level="0" aria-posinset="0" aria-setsize="0" href="http://www.aquascapeinc.com/upload/Underlayment_MSDS.pdf"&gt;DOWNLOAD MSDS&lt;/a&gt;&lt;/strong&gt;"&lt;/p&gt;&lt;/strong&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;/strong&gt;&amp;nbsp;&lt;/p&gt;&lt;br /&gt;&lt;br /&gt;Visit &lt;a href="https://Shop.TJB-INC.com/needle-punched-underlayment-liner-protector-c55all.aspx"&gt;Needle Punched Underlayment (Liner Protector)&lt;/a&gt; to see additional products in this category.&lt;/div&gt;</description>
    </item>
    <item>
      <link>https://Shop.TJB-INC.com/aquascape-needle-punched-water-garden--pond-underlayment-fabric-boxed-p705.aspx</link>
      <guid isPermaLink="false">Product705</guid>
      <pubDate>Tue, 9 Oct 2007 16:29:00 GMT</pubDate>
      <title>Aquascape Needle Punched Water Garden &amp; Pond Underlayment Fabric (Boxed)</title>
      <description>&lt;div style="float:left"&gt;&lt;a class="url" href="https://Shop.TJB-INC.com/aquascape-needle-punched-water-garden--pond-underlayment-fabric-boxed-p705.aspx"&gt;&lt;img src="//cdn.nexternal.com/tjb/images/Underlayment3.jpg" WIDTH=100 alt="Aquascape Needle Punched Water Garden &amp; Pond Underlayment Fabric (Boxed)" border="0" hspace="3"&gt;&lt;/a&gt;&lt;/div&gt;&lt;span class="riRssTitle"&gt;&lt;a href="https://Shop.TJB-INC.com/aquascape-needle-punched-water-garden--pond-underlayment-fabric-boxed-p705.aspx"&gt;Aquascape Needle Punched Water Garden &amp; Pond Underlayment Fabric (Boxed)&lt;/a&gt;&lt;/span&gt;&lt;br&gt;&lt;a href="https://Shop.TJB-INC.com/aquascape-needle-punched-water-garden--pond-underlayment-fabric-boxed-p705.aspx"&gt;Buy Now:&lt;/a&gt; &lt;span color="#990000"&gt;&lt;b&gt;&lt;strike&gt;$32.00&lt;/strike&gt; &lt;span color="red"&gt;&lt;b&gt;$28.80&lt;/b&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt; &lt;br /&gt;&lt;br /&gt;&lt;div&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="6"&gt;Boxed Underlayment Fabric&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#c00000" size="4"&gt;Small sizes in UPS Shippable Boxes&lt;/font&gt;&lt;/strong&gt;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;This soft, polyethylene fabric will last 20+ years under your liner. It is a 3-dimensional underlayment that allows gases to escape. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;It has a non-slippery surface and provides protection for the liner from rocks and other sharp objects, spreads easily, and saves time compared to using newspaper or sand. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;It also will not decay like newspaper or carpet padding &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;This is a non-woven, 4-oz. needle-punched Geotextile. &lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;We also custom cut sizes - See "&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#800000"&gt;Custom Cut Underlayment&lt;/font&gt;".&lt;/li&gt;&lt;/ul&gt;&lt;hr aria-level="0" aria-posinset="0" aria-setsize="0" noshade="true"&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&amp;nbsp;&lt;/p&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff" size="4"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC INSTALLATION TIPS:&lt;/strong&gt;&lt;/font&gt;&lt;/p&gt;&lt;ul aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;We use this underlayment in all of our water feature installations.&amp;nbsp; &lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Anywhere we install EPDM liner, we first put down 1 or more layers of the underlayment.&amp;nbsp; The amount of layers is determined by how clean the soil is under the liner.&amp;nbsp; If there is not a lot of rocks or roots, one layer will do.&amp;nbsp; If you are installing pond liner over rock, roots, or sharp debris, &amp;nbsp;then we recommend putting a layer of sand or stone dust down first on all of the horizontal surfaces.&amp;nbsp; Then follow-up with a layer of underlayment.&amp;nbsp; If your sidewalls are bad, then sand won't work for vertical surfaces.&amp;nbsp; This is where we would double or triple layer the underlayment so we are protected against punctures in the liner from buried debris.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;If you are placing large rocks in the pond, cut a piece of underlayment to go between the rock and the pond liner.&amp;nbsp; If the rock is very rough, use several layers of fabric.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;Most punctures are caused when you go to re-position a rock when it is on top of the liner.&amp;nbsp; As you swivel the rock, it grabs the liner and creates a tear.&amp;nbsp; This can still happen if you&amp;nbsp;use a scrap piece of&amp;nbsp;pond liner.&amp;nbsp; Rubber against rubber grabs and can still tear the pond liner.&amp;nbsp;&amp;nbsp;That is why &lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;TJB-INC&lt;/strong&gt; recommends using a piece of underlayment (instead of extra liner) under the larger rocks.&amp;nbsp; Do not worry how it looks.&amp;nbsp; When you add the&amp;nbsp;smaller filler rocks and the gravel, the piece of underlayment you used will be covered up.&lt;/font&gt;&lt;/li&gt;&lt;li aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#0000ff"&gt;&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" size="4"&gt;Underlayment is cheap compared to having to go back and finding a leak(s) &amp;amp; repairing it!&lt;/font&gt;&lt;/strong&gt;&amp;nbsp;&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;font aria-level="0" aria-posinset="0" aria-setsize="0" color="#ff0080"&gt;To view a printable .pdf copy of the MSDS (Material Safety Data Sheet) that has been filed with the EPA, click on the link at the end of this statement.&amp;nbsp; To return to this screen, click on your browser's BACK arrow (located in the upper left corner of your screen). &lt;/font&gt;"&lt;strong aria-level="0" aria-posinset="0" aria-setsize="0"&gt;&lt;a aria-level="0" aria-posinset="0" aria-setsize="0" href="http://www.aquascapeinc.com/upload/Underlayment_MSDS.pdf"&gt;DOWNLOAD MSDS&lt;/a&gt;&lt;/strong&gt;"&lt;/p&gt;&lt;object width="425" height="344"&gt;&lt;param name="movie" value="http://www.youtube.com/v/FStXSb3-hYQ&amp;amp;hl=en&amp;amp;fs=1"&gt;&lt;param name="allowFullScreen" value="true"&gt;&lt;param name="allowscriptaccess" value="always"&gt;&lt;embed src="http://www.youtube.com/v/FStXSb3-hYQ&amp;amp;hl=en&amp;amp;fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"&gt;&lt;/object&gt;&lt;br /&gt;&lt;br /&gt;Visit &lt;a href="https://Shop.TJB-INC.com/needle-punched-underlayment-liner-protector-c55all.aspx"&gt;Needle Punched Underlayment (Liner Protector)&lt;/a&gt; to see additional products in this category.&lt;/div&gt;</description>
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