|Posted by hj on May 22, 2004 at 09:42:45:|
|In response to Re: Air Gap for Sump Pump?|
You mean an air chamber. It will not help. The bang is the check valve closing and is caused by the weight of the water pushing it closed. You need a check valve with a rubber disc, which will help reduce the noise considerably.
: My sump pump always cuts off with a big bang - just like a water pipe without an air gap.
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