{"product_id":"hayward-1-5-2mpt-hydrostatic-relief-valve-sp1056","title":"Hayward 1.5″\/2″MPT Hydrostatic Relief Valve | SP1056","description":"\u003ch2 data-section-id=\"1p927wt\" data-start=\"167\" data-end=\"186\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"188\" data-end=\"615\"\u003eThe \u003cstrong data-start=\"192\" data-end=\"247\"\u003eHayward SP1056 1.5\"\/2\" MPT Hydrostatic Relief Valve\u003c\/strong\u003e is a genuine Hayward replacement valve designed to help protect in-ground swimming pools from damage caused by external groundwater pressure. When a pool is drained, groundwater pressure beneath the pool shell can build up and potentially cause structural damage. This spring-loaded relief valve helps release that pressure safely through the main drain or sump area.\u003c\/p\u003e\n\u003cp data-start=\"617\" data-end=\"881\"\u003eMade from durable \u003cstrong data-start=\"635\" data-end=\"656\"\u003ewhite ABS plastic\u003c\/strong\u003e, the SP1056 is noncorrosive, nonconductive, and designed for use with \u003cstrong data-start=\"727\" data-end=\"768\"\u003e1.5\" and 2\" threaded pipe connections\u003c\/strong\u003e. It is commonly installed in pool main drain sumps and should be inspected or replaced when the pool is drained.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1vdrhtn\" data-start=\"883\" data-end=\"895\"\u003eIdeal For\u003c\/h2\u003e\n\u003cp data-start=\"897\" data-end=\"1167\"\u003eIn-ground swimming pools\u003cbr data-start=\"921\" data-end=\"924\"\u003eMain drain hydrostatic relief applications\u003cbr data-start=\"966\" data-end=\"969\"\u003ePool draining and maintenance projects\u003cbr data-start=\"1007\" data-end=\"1010\"\u003eReplacing worn or old hydrostatic relief valves\u003cbr data-start=\"1057\" data-end=\"1060\"\u003eConcrete, vinyl, and fiberglass pool installations\u003cbr data-start=\"1110\" data-end=\"1113\"\u003ePool professionals performing drain and sump service\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1169\" data-end=\"1184\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"1186\" data-end=\"1319\"\u003e\u003cstrong data-start=\"1186\" data-end=\"1218\"\u003eHelps Protect Pool Structure\u003c\/strong\u003e\u003cbr data-start=\"1218\" data-end=\"1221\"\u003eDesigned to relieve external hydrostatic pressure beneath the pool shell when the pool is drained.\u003c\/p\u003e\n\u003cp data-start=\"1321\" data-end=\"1430\"\u003e\u003cstrong data-start=\"1321\" data-end=\"1353\"\u003eFits 1.5\" and 2\" Connections\u003c\/strong\u003e\u003cbr data-start=\"1353\" data-end=\"1356\"\u003eCompatible with 1.5\" and 2\" threaded pipe sizes for flexible installation.\u003c\/p\u003e\n\u003cp data-start=\"1432\" data-end=\"1549\"\u003e\u003cstrong data-start=\"1432\" data-end=\"1462\"\u003eSpring-Loaded Valve Design\u003c\/strong\u003e\u003cbr data-start=\"1462\" data-end=\"1465\"\u003eOpens when pressure builds beneath the pool shell to help reduce the risk of damage.\u003c\/p\u003e\n\u003cp data-start=\"1551\" data-end=\"1667\"\u003e\u003cstrong data-start=\"1551\" data-end=\"1577\"\u003eWhite ABS Construction\u003c\/strong\u003e\u003cbr data-start=\"1577\" data-end=\"1580\"\u003eMade from durable, noncorrosive ABS plastic for pool and underground sump applications.\u003c\/p\u003e\n\u003cp data-start=\"1669\" data-end=\"1777\"\u003e\u003cstrong data-start=\"1669\" data-end=\"1698\"\u003eSelf-Cleaning O-Ring Seal\u003c\/strong\u003e\u003cbr data-start=\"1698\" data-end=\"1701\"\u003eDesigned with a leak-resistant, self-cleaning seal for dependable operation.\u003c\/p\u003e\n\u003cp data-start=\"1779\" data-end=\"1875\"\u003e\u003cstrong data-start=\"1779\" data-end=\"1815\"\u003eGenuine Hayward Replacement Part\u003c\/strong\u003e\u003cbr data-start=\"1815\" data-end=\"1818\"\u003eManufactured by Hayward for reliable fit and performance.\u003c\/p\u003e\n\u003ch2 data-section-id=\"2qq1z5\" data-start=\"1877\" data-end=\"1888\"\u003eBenefits\u003c\/h2\u003e\n\u003cp data-start=\"1890\" data-end=\"2035\"\u003e\u003cstrong data-start=\"1890\" data-end=\"1927\"\u003eReduces Risk of Pool Shell Damage\u003c\/strong\u003e\u003cbr data-start=\"1927\" data-end=\"1930\"\u003eHelps prevent damage caused by groundwater pressure when the pool is emptied or water levels are lowered.\u003c\/p\u003e\n\u003cp data-start=\"2037\" data-end=\"2187\"\u003e\u003cstrong data-start=\"2037\" data-end=\"2071\"\u003eReliable Pool Drain Protection\u003c\/strong\u003e\u003cbr data-start=\"2071\" data-end=\"2074\"\u003eA critical safety component for pools located in areas with high water tables or changing groundwater conditions.\u003c\/p\u003e\n\u003cp data-start=\"2189\" data-end=\"2312\"\u003e\u003cstrong data-start=\"2189\" data-end=\"2224\"\u003eDurable and Corrosion Resistant\u003c\/strong\u003e\u003cbr data-start=\"2224\" data-end=\"2227\"\u003eABS plastic construction resists corrosion and is nonconductive for long-lasting use.\u003c\/p\u003e\n\u003cp data-start=\"2314\" data-end=\"2448\"\u003e\u003cstrong data-start=\"2314\" data-end=\"2341\"\u003eSimple Replacement Part\u003c\/strong\u003e\u003cbr data-start=\"2341\" data-end=\"2344\"\u003eDesigned as a direct replacement hydrostatic relief valve for compatible Hayward drain and sump systems.\u003c\/p\u003e\n\u003cp data-start=\"2450\" data-end=\"2612\"\u003e\u003cstrong data-start=\"2450\" data-end=\"2486\"\u003eSupports Proper Pool Maintenance\u003c\/strong\u003e\u003cbr data-start=\"2486\" data-end=\"2489\"\u003eA functioning hydrostatic valve is especially important during draining, resurfacing, liner replacement, and major repairs.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"2614\" data-end=\"2631\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2633\" data-end=\"3170\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2633\" data-end=\"2660\"\u003e\n\u003ctr data-start=\"2633\" data-end=\"2660\"\u003e\n\u003cth data-start=\"2633\" data-end=\"2649\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"2649\" data-end=\"2660\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2671\" data-end=\"3170\"\u003e\n\u003ctr data-start=\"2671\" data-end=\"2690\"\u003e\n\u003ctd data-start=\"2671\" data-end=\"2679\" data-col-size=\"sm\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-start=\"2679\" data-end=\"2690\" data-col-size=\"sm\"\u003eHayward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2691\" data-end=\"2746\"\u003e\n\u003ctd data-start=\"2691\" data-end=\"2706\" data-col-size=\"sm\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2706\" data-end=\"2746\"\u003e1.5\"\/2\" MPT Hydrostatic Relief Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2747\" data-end=\"2771\"\u003e\n\u003ctd data-start=\"2747\" data-end=\"2761\" data-col-size=\"sm\"\u003eSKU \/ Model\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2761\" data-end=\"2771\"\u003eSP1056\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2772\" data-end=\"2804\"\u003e\n\u003ctd data-start=\"2772\" data-end=\"2788\" data-col-size=\"sm\"\u003eBarcode \/ UPC\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2788\" data-end=\"2804\"\u003e610377045865\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2805\" data-end=\"2848\"\u003e\n\u003ctd data-start=\"2805\" data-end=\"2820\" data-col-size=\"sm\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2820\" data-end=\"2848\"\u003eHydrostatic Relief Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2849\" data-end=\"2882\"\u003e\n\u003ctd data-start=\"2849\" data-end=\"2867\" data-col-size=\"sm\"\u003eConnection Size\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2867\" data-end=\"2882\"\u003e1.5\" and 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2883\" data-end=\"2923\"\u003e\n\u003ctd data-start=\"2883\" data-end=\"2901\" data-col-size=\"sm\"\u003eConnection Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2901\" data-end=\"2923\"\u003eMPT \/ MIP Threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2924\" data-end=\"2950\"\u003e\n\u003ctd data-start=\"2924\" data-end=\"2935\" data-col-size=\"sm\"\u003eMaterial\u003c\/td\u003e\n\u003ctd data-start=\"2935\" data-end=\"2950\" data-col-size=\"sm\"\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2951\" data-end=\"2968\"\u003e\n\u003ctd data-start=\"2951\" data-end=\"2959\" data-col-size=\"sm\"\u003eColor\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2959\" data-end=\"2968\"\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2969\" data-end=\"3012\"\u003e\n\u003ctd data-start=\"2969\" data-end=\"2982\" data-col-size=\"sm\"\u003eValve Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2982\" data-end=\"3012\"\u003eSpring-Loaded Relief Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3013\" data-end=\"3054\"\u003e\n\u003ctd data-start=\"3013\" data-end=\"3025\" data-col-size=\"sm\"\u003eSeal Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3025\" data-end=\"3054\"\u003eSelf-Cleaning O-Ring Seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3055\" data-end=\"3109\"\u003e\n\u003ctd data-start=\"3055\" data-end=\"3069\" data-col-size=\"sm\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3069\" data-end=\"3109\"\u003ePool Main Drain \/ Hydrostatic Relief\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3110\" data-end=\"3141\"\u003e\n\u003ctd data-start=\"3110\" data-end=\"3122\" data-col-size=\"sm\"\u003ePool Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3122\" data-end=\"3141\"\u003eIn-Ground Pools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3142\" data-end=\"3170\"\u003e\n\u003ctd data-start=\"3142\" data-end=\"3163\" data-col-size=\"sm\"\u003eOEM \/ Genuine Part\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3163\" data-end=\"3170\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"px9lge\" data-start=\"3172\" data-end=\"3194\"\u003eCustomer-Facing Q\u0026amp;A\u003c\/h2\u003e\n\u003cp data-start=\"3196\" data-end=\"3397\"\u003e\u003cstrong data-start=\"3196\" data-end=\"3260\"\u003eQ: What does the Hayward SP1056 hydrostatic relief valve do?\u003c\/strong\u003e\u003cbr data-start=\"3260\" data-end=\"3263\"\u003eA: It helps release groundwater pressure beneath the pool shell when the pool is drained, reducing the risk of structural pool damage.\u003c\/p\u003e\n\u003cp data-start=\"3399\" data-end=\"3518\"\u003e\u003cstrong data-start=\"3399\" data-end=\"3447\"\u003eQ: What size connection does this valve fit?\u003c\/strong\u003e\u003cbr data-start=\"3447\" data-end=\"3450\"\u003eA: The SP1056 is designed for 1.5\" and 2\" threaded pipe connections.\u003c\/p\u003e\n\u003cp data-start=\"3520\" data-end=\"3622\"\u003e\u003cstrong data-start=\"3520\" data-end=\"3558\"\u003eQ: Is this a genuine Hayward part?\u003c\/strong\u003e\u003cbr data-start=\"3558\" data-end=\"3561\"\u003eA: Yes. SP1056 is a genuine Hayward hydrostatic relief valve.\u003c\/p\u003e\n\u003cp data-start=\"3624\" data-end=\"3763\"\u003e\u003cstrong data-start=\"3624\" data-end=\"3661\"\u003eQ: Where is this valve installed?\u003c\/strong\u003e\u003cbr data-start=\"3661\" data-end=\"3664\"\u003eA: It is commonly installed in the main drain sump or hydrostatic relief sump of an in-ground pool.\u003c\/p\u003e\n\u003cp data-start=\"3765\" data-end=\"3937\"\u003e\u003cstrong data-start=\"3765\" data-end=\"3827\"\u003eQ: Should this valve be replaced when the pool is drained?\u003c\/strong\u003e\u003cbr data-start=\"3827\" data-end=\"3830\"\u003eA: Hayward product guidance recommends replacing the hydrostatic relief valve whenever the pool is drained.\u003c\/p\u003e\n\u003cp data-start=\"3939\" data-end=\"4053\"\u003e\u003cstrong data-start=\"3939\" data-end=\"3972\"\u003eQ: What is the valve made of?\u003c\/strong\u003e\u003cbr data-start=\"3972\" data-end=\"3975\"\u003eA: It is made from white ABS plastic, which is noncorrosive and nonconductive.\u003c\/p\u003e\n\u003cp data-start=\"4055\" data-end=\"4248\"\u003e\u003cstrong data-start=\"4055\" data-end=\"4101\"\u003eQ: Can homeowners install this themselves?\u003c\/strong\u003e\u003cbr data-start=\"4101\" data-end=\"4104\"\u003eA: Installation should be handled by a qualified pool professional, especially when draining an in-ground pool or servicing the main drain area.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52762645889334,"sku":"HPPSP1056 -H","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/HPPSP1056_0.jpg?v=1755535125","url":"https:\/\/poolsupplydepot.net\/products\/hayward-1-5-2mpt-hydrostatic-relief-valve-sp1056","provider":"Pool Supply Depot","version":"1.0","type":"link"}