Quote:
(I doubt that you'd get a whole lot of flow through a dead pump, as myv65 and others have stated).
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The test;
As shown in pic, the square grey pump is rated at 2000L/H, the black pump at 2800L/H. 5/8'' tubing, timing to fill a 9L bucket.
flow with both pumps going; 1620L/H.
flow with black pump "dead"; 939L/H
flow with grey pump "dead"; 1120L/H