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Old 02-20-2013, 11:53 AM   #1
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Overflow empties to fast

So I installed a overflow box with a bulkhead and and down facing 90 degree elbow. My overflow box empties fast, makes a gurgling sound, stops the input in my sump, water runs for a bit and the whole process begins again.
I only have a ball valve above my pump but restricting the performance is a bad idea I heard. What can I do to fix this? Thank you

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Old 02-20-2013, 02:25 PM   #2
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You can safely choke back the return pump at the exhaust port. It's not bad for the pump. On the contrary, it will lengthen it's life. That said, I don't really understand the issue. If this is a gravity fed overflow, meaning, the tank is drilled, it's only going to drain what you put in it. No faster or slower. Try sliding a piece of airline tubing down the hole a bit. see if that helps. It should pull air from the tube and calm the toilet flushing sound, and regulate the flow a bit better.
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flow, overflow

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