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sump pumps... help me please!

Posted by Kristen Welburn on May 23rd, 2000 06:18 PM
In reply to Battery Backup Sump Pump??? by Dan B on September 17th, 1997 02:50 PM [Go to top of thread]

help! I'm doing an assignment for my science class on sump pumps. I need to know how air pressure relates to the sump pump, and what the air does to help the machine pump the water out. No other sites have the answer to my question. But I think you might be able to help. My assignment is due on Friday May 26. If at all is possible, please try to send me my answer ASAP.

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