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Old 08-05-2009
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JimsCAL JimsCAL is offline
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Sounds like the pump may be losing its prime. Most likely cause is wear in the pump that has opened up the clearances and prevent the impeller from sealing correctly and drawing water in from the suction line. Check for scoring in the cover plate. If its scored, either file it smooth or replace it. An air leak in the suction line could also be part of the problem.
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