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thunder66 t1_izguxbp wrote

Reply to comment by burnsj85 in Where's the sump pump float? by golds413

Diaphragm, but yes. Upvoted as the correct answer.

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golds413 OP t1_izhbuxh wrote

I tried to confirm it by filling up the well with water. Since the pump only turns on after it is submerged and then some, I sincerely doubt how it could be a float. So I agree, it seems like it must be a diaphragm.

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