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Pumps clog due to excessive debris volume, debris size, or debris shape. Pumps are rated for handling debris at a given size, but usually it's considered a 'spherical' diameter for passage. Low pump discharge velocity or heavy debris weight can also add to a pumps clogging due to the inability for a pump to move the solids away from the sump. 'Ragging' of a pump is a type of clogging that occurs between the impeller and volute by material trying to pass from the high-pressure side to the low-pressure suction side, getting stuck, and stopping the impeller from turning.

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Q: What causes sump pumps to clog?
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Yes, ABS can be used for sump pumps if you do not need it to be flexible.Yes, ABS can be used for sump pumps if you do not need it to be flexible.


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