Sump pump issue

[tailgunner]

I have water gushing out of the sump pump discharge overflow pipe . That is the pvc that is curved downward in the photo. The pvc runs about 30 feet and discharges into a grated storm water drain. I have stuck a hose into that elbow and ran water, and I can see it exiting the sump pump pvc into the storm drain. If there is water flowing thru, why is it coming out of that elbow when the pump kicks on ?

 

[CT18]

It shouldn't come out the 90°. It should come out that 4 x 2 reducer. Do they have something on the end of the 1 1/2" pipe that goes into that reducer

 

[tailgunner]

From what i can see, it just looks like the pipe goes into the reducer and terminates a short distance in. Home is 12 years old, no previous issues with this . I suspect that there may be tree roots in the pipe causing a partial blockage. Could this cause a kind back pressure ?

 

[MicEd69]

I suspect that there may be tree roots in the pipe causing a partial blockage. Could this cause a kind back pressure ?

Yes. For water to come out of that 90, there has to be at least a partial blockage in that line. And depending on the flowrate into that partially blocked line, water can come out of that overflow. once the line fills up and the flow through the restriction can't keep up with the water being pumped into the line.

 

[tailgunner]

Thanks for the replies, time to get a camera down to see what's going on.

 

[Twowaxhack]

Try using one of these first. It’ll be a lot cheaper than a camera and it may work.

https://www.acehardware.com/departm...VkhfUAR32NwbpEAQYAiABEgJHB_D_BwE&gclsrc=aw.ds

 

[tailgunner]

Thanks for that option Twowax ! Is the drain bladder flexible enough to insert it at that elbow?