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lennyseleven 11-07-2007 10:43 AM

Question about sump pumps and check valves
I am installing a sump pump where there was no sump pump before. I am wondering if I can tie in the output into my output line for the water softener?
First of all the sump pump output is 1 1/4'' and the softener output line is 1/2, is this going to overload that line if I reduce it from 1.25 to .5''?

Secondly, Im assuming ill need a check valve for the water softener sicne I wont want the sump pushing water back into the softener, but my sump pump check valve needs a hole below the check valve in the pipe, which means a little water will leak back into the sump, no big deal. BUT do I need to do this for the check valve on the softener line? Because this would leak back into my basement.


tyler101 11-07-2007 12:14 PM

You don't want to reduce the flow that much. During a big rain storm you will be sorry.

handy man88 11-07-2007 02:37 PM

Keep the lines separate. Don't cut corners on this.

Also, many installers don't drill a hole at the bottom near the pump. They'd rather keep the water in the pipe rather than relieve it back into the pit.

majakdragon 11-08-2007 10:33 AM

Do not tie the two lines together. Your sump pump will not work properly. Run the pump discharge line full size out of the house. I have never put a hole in the discharge line either.

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