{"product_id":"gli-standard-duty-8-double-chamber-water-tube-black-for-in-ground-wint","title":"GLI Standard Duty 8' Double Chamber Water Tube, Black for In Ground Winter Covers, 500008WTDBLK","description":"\n\u003cstyle\u003e\n  .gliwts-wrap, .gliwts-wrap * { box-sizing: border-box; }\n  .gliwts-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.6;\n  }\n\n  \/* Title bar (flat, no gradient) *\/\n  .gliwts-title {\n    border-bottom: 3px solid #8a8a8a;\n    padding-bottom: 12px;\n    margin-bottom: 20px;\n  }\n  .gliwts-title h2 {\n    margin: 0;\n    font-size: 1.6em;\n    color: #2a2a2a;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .gliwts-subtitle {\n    margin: 4px 0 0;\n    color: #555;\n    font-size: 0.95em;\n    font-style: italic;\n  }\n\n  \/* Intro *\/\n  .gliwts-intro {\n    margin: 0 0 24px;\n    font-size: 1em;\n    color: #333;\n  }\n\n  \/* Spec table *\/\n  .gliwts-spec-section { margin-bottom: 24px; }\n  .gliwts-spec-heading {\n    font-size: 0.85em;\n    text-transform: uppercase;\n    letter-spacing: 0.06em;\n    color: #2a2a2a;\n    font-weight: 700;\n    margin: 0 0 8px;\n  }\n  .gliwts-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95em;\n  }\n  .gliwts-spec-table tr { border-bottom: 1px solid #e8ecf3; }\n  .gliwts-spec-table tr:last-child { border-bottom: none; }\n  .gliwts-spec-table th,\n  .gliwts-spec-table td {\n    text-align: left;\n    padding: 8px 12px;\n    vertical-align: top;\n  }\n  .gliwts-spec-table th {\n    font-weight: 600;\n    color: #2a2a2a;\n    width: 42%;\n    background: #f7f8fc;\n  }\n  .gliwts-spec-table td { color: #1a1a1a; }\n\n  \/* FAQ (optional) *\/\n  .gliwts-faq { margin-bottom: 24px; }\n  .gliwts-faq-item {\n    border-bottom: 1px solid #e8ecf3;\n    padding: 12px 0;\n  }\n  .gliwts-faq-item:last-child { border-bottom: none; }\n  .gliwts-faq-q {\n    font-weight: 600;\n    color: #2a2a2a;\n    margin: 0 0 4px;\n    font-size: 0.98em;\n  }\n  .gliwts-faq-a { margin: 0; color: #333; font-size: 0.95em; }\n\n  \/* Footer perks line *\/\n  .gliwts-footer {\n    border-top: 1px solid #e1e6ed;\n    padding-top: 14px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.9em;\n  }\n  .gliwts-footer .gliwts-dot {\n    color: #8a8a8a;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"gliwts-wrap\"\u003e\n\n  \u003cheader class=\"gliwts-title\"\u003e\n    \u003ch2\u003eGLI Standard Duty 8' Double Chamber Water Tube, Black, In Ground Winter Cover Weight\u003c\/h2\u003e\n    \u003cp class=\"gliwts-subtitle\"\u003eHolds the cover down without gouging the liner.\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"gliwts-intro\"\u003e\u003cstrong\u003eThe GLI standard duty 8' Double Chamber Water Tube, Black, part 500008WTDBLK\u003c\/strong\u003e, is a vinyl water bag that lays on the deck and pins the edge of a solid in ground winter cover, stocked under SKU PST-500008WTDBLK. Water tubes are the right way to weight a winter cover, because unlike bricks, blocks, or sandbags they cannot chip the coping or tear the liner if they slide in. This one is a double chamber tube, so a puncture in one side still leaves the other side full and the cover held. Fill each chamber to roughly three quarters so the water has room to expand when it freezes.\u003c\/p\u003e\n\n  \u003csection class=\"gliwts-spec-section\"\u003e\n    \u003cdiv class=\"gliwts-spec-heading\"\u003eSpecifications\u003c\/div\u003e\n    \u003ctable class=\"gliwts-spec-table\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eGLI Pool Products\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003e8' Double Chamber Water Tube, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ MPN\u003c\/th\u003e\n\u003ctd\u003e500008WTDBLK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003ePST-500008WTDBLK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade\u003c\/th\u003e\n\u003ctd\u003eStandard duty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eDouble chamber vinyl, heat sealed seams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClosure\u003c\/th\u003e\n\u003ctd\u003eScrew cap fill plug on each chamber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFill Level\u003c\/th\u003e\n\u003ctd\u003eAbout 75 percent, leave room for ice expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eWeighting solid winter covers on in ground pools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlacement\u003c\/th\u003e\n\u003ctd\u003eEnd to end around the full perimeter of the cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeason\u003c\/th\u003e\n\u003ctd\u003eFall closing through spring opening\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \n  \u003csection class=\"gliwts-faq\"\u003e\n    \u003cdiv class=\"gliwts-spec-heading\"\u003eGood to Know\u003c\/div\u003e\n    \n    \u003cdiv class=\"gliwts-faq-item\"\u003e\n      \u003cp class=\"gliwts-faq-q\"\u003eHow full should a water tube be?\u003c\/p\u003e\n      \u003cp class=\"gliwts-faq-a\"\u003eAbout \u003cstrong\u003ethree quarters\u003c\/strong\u003e. Water expands as it freezes, and a tube filled to the cap has nowhere to put that expansion, so the seam or the cap end fails over the winter.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"gliwts-faq-item\"\u003e\n      \u003cp class=\"gliwts-faq-q\"\u003eHow many tubes do I need?\u003c\/p\u003e\n      \u003cp class=\"gliwts-faq-a\"\u003eEnough to run end to end around the whole cover with no gaps. Add up the perimeter of your pool in feet and divide by the tube length. Gaps are where wind gets under the cover.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"gliwts-faq-item\"\u003e\n      \u003cp class=\"gliwts-faq-q\"\u003eWhy a water tube instead of bricks or blocks?\u003c\/p\u003e\n      \u003cp class=\"gliwts-faq-a\"\u003eWater tubes are soft. A block or brick that slides off the deck can chip coping, tear a solid cover, or drop through and damage the liner. A tube just slumps and stays put.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"gliwts-footer\"\u003e\n    Free Shipping\u003cspan class=\"gliwts-dot\"\u003e•\u003c\/span\u003e30-Day Returns\u003cspan class=\"gliwts-dot\"\u003e•\u003c\/span\u003eWarranty Backed\u003cspan class=\"gliwts-dot\"\u003e•\u003c\/span\u003eAuthorized GLI Dealer\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"GLI Pool Products","offers":[{"title":"Default Title","offer_id":44289620312129,"sku":"PST-500008WTDBLK","price":24.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/Air_Pillows___Water_Tubes_009.png?v=1785943961","url":"https:\/\/www.pstpoolsupplies.com\/products\/gli-standard-duty-8-double-chamber-water-tube-black-for-in-ground-wint","provider":"PST Pool Supplies","version":"1.0","type":"link"}