Sump Pump discharge

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tailgunner

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I have a sump pump discharge line on the exterior wall of my home . Just lately , I have noticed that the overflow elbow is spitting water . I measured about 16 ounces overnight. This just started and I am wondering what might be causing the water to discharge from this elbow. Could a partial blockage of the pipe cause this ? Thanks , BobSP Pipe.jpg
 

Geofd

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try running an auger thru the 90 into the bigger pipe...…..then I would test the fixtures that drain into the sump try dye in the toiletcheck the faucet and shower for leaks
 
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