{"product_id":"1-2hp-full-rated-3-4hp-up-rated-impeller-high-pressure","title":"Pentair 1\/2HP Full Rated, 3\/4HP Up Rated Impeller, High Pressure, 355147","description":"\u003cp\u003eThe Pentair 355147 is the impeller for Challenger high pressure pumps, sized for the 1\/2 HP full rated and 3\/4 HP up rated models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the impeller does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is the spinning part that moves the water. The impeller has to match the horsepower of the motor driving it, which is why Pentair builds a separate impeller for each rating in the range. Fitting the wrong one leaves the pump either underperforming or loading the motor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSymptoms of a bad impeller\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWeak return flow with a clean pump basket and a clean filter is the classic sign. Sometimes it is debris packed into the vanes, which cleans out. Sometimes the vanes themselves have worn or broken, and no amount of cleaning brings the flow back.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhile the pump is open\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe mechanical seal is behind the impeller and has to be disturbed to remove it, and the diffuser sits in front. Both are worth inspecting while the pump is apart so the job is done once.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48628781023444,"sku":"PAC-101-3118","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_9a45343f-c41e-4dc6-929f-0f08923e53fa.gif?v=1788750513","url":"https:\/\/www.activepoolsupply.com\/products\/1-2hp-full-rated-3-4hp-up-rated-impeller-high-pressure","provider":"Active Pool Supply","version":"1.0","type":"link"}