{"product_id":"wayne-cdu790-1-3-hp-submersible-sump-pump-heavy-duty-basement-pump","title":"WAYNE CDU790 1\/3 HP Submersible Sump Pump - Heavy Duty Basement Pump","description":"\u003cp\u003eIn this review of the WAYNE CDU790, the bottom line is straightforward: this 1\/3 HP submersible sump pump is for homeowners who need a reliable, quiet unit that moves a lot of water without complicated installation. The CDU790 stands out because of its top suction and cast iron construction, which combine for strong flow and resistance to clogging. Our review finds it particularly useful for typical basements and sump pits 11 in or larger, offering straightforward setup and durable components that make it a practical long-term choice.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh flow capacity:\u003c\/strong\u003e Pumps up to 4,600 GPH at 0 ft to handle heavy runoff from rain or melting snow and keep basements dry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Cast iron volute and epoxy-coated steel motor housing resist corrosion and provide long service life in demanding sump applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop suction design:\u003c\/strong\u003e Eliminates air lock and minimizes clogging by drawing water from the top of the pump, reducing maintenance from debris at the pit bottom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated vertical float switch:\u003c\/strong\u003e A vertical float tested to 1 million cycles offers reliable automatic operation and improved longevity compared with common competitors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy installation:\u003c\/strong\u003e Fits 11 in or larger sump basins and installs quickly without drilling a weep hole or complex plumbing changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCode-ready discharge:\u003c\/strong\u003e 1-1\/2 NPT discharge meets typical building code requirements for residential sump systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe WAYNE CDU790 is best for homeowners with standard residential basins who want a heavy duty, quietly operating pump that handles high water flow. It suits those who value American assembly and a simple installation process that can be completed with basic tools in under an hour.\u003c\/p\u003e\n\u003cp\u003eHomeowners with atypical sump pits smaller than 11 in, or those needing a pump rated for outdoor or permanent submersion beyond sump use, should look elsewhere. Also, if weight and absolute corrosion immunity are top priorities, a full stainless steel body pump may be preferred over a cast iron design.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStrong water handling with up to 4,600 GPH capacity for heavy water events.\u003c\/li\u003e\n\u003cli\u003eRobust cast iron and epoxy-coated housing for long-term durability and quiet operation.\u003c\/li\u003e\n\u003cli\u003eTop suction reduces clogging and air lock for more reliable performance in debris-prone pits.\u003c\/li\u003e\n\u003cli\u003eVertical float switch rated to 1 million cycles for dependable automatic cycling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for indoor sump use only, so it is not suitable for outdoor pumping or non-sump applications.\u003c\/li\u003e\n\u003cli\u003eSome customers report mixed long-term durability experiences, so occasional failures are possible despite overall solid build quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCDU790\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e1\/3 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Flow\u003c\/td\u003e\n\u003ctd\u003eUp to 4,600 GPH at 0 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSump Basin Size\u003c\/td\u003e\n\u003ctd\u003eDesigned for 11 in or larger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eCast iron volute with epoxy-coated steel motor housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitch\u003c\/td\u003e\n\u003ctd\u003eIntegrated vertical float, tested to 1,000,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe WAYNE CDU790 is a practical, value-oriented choice for homeowners who need a quiet, heavy duty basement sump pump that handles high flow and resists common clogging issues. Its cast iron construction, top suction design, and a long-life vertical float make it a smart buy for typical residential sump pits 11 in or larger, offering performance and reliability for the price.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this pump suitable for small 10 in sump basins?\u003c\/strong\u003e\u003cbr\u003eIt is designed for 11 in or larger basins, so a 10 in basin may not accommodate the unit safely or allow proper top suction operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this pump be used outdoors or in continuous submerged conditions?\u003c\/strong\u003e\u003cbr\u003eNo, the CDU790 is specified for indoor sump use only and is intended for typical basement sump installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow noisy is the pump in operation?\u003c\/strong\u003e\u003cbr\u003eThe cast iron housing and design provide quiet operation compared with many alternatives; customers commonly note it runs quietly when cycling.\u003c\/p\u003e","brand":"Wayne","offers":[{"title":"Default Title","offer_id":48192278790363,"sku":"B0002YVQA2","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71tKDT6EpzL._AC_SL1500.jpg?v=1769794977","url":"https:\/\/gearmusthave.com\/products\/wayne-cdu790-1-3-hp-submersible-sump-pump-heavy-duty-basement-pump","provider":"GearMustHave","version":"1.0","type":"link"}