Ejector pump instead of sump pump in basement

Question

I need both groundwater drainage as well as laundry room sewage pump in basement.
Should they be separate pumps (asump pit with pump and 40 liter sewage ejector reservoir with pump) or could ground water drainage be connected directly to ejector pump reservoir?
If so, any precautions need to be made to avoid sewage water going under the floor in drainage pipes? Or does that add too many risks and best to go with two separate systems?

lietus · Answer

At the end I will go with 2 pumps and 2 reservoirs. Sump pit and small pump will be deeper, but only for emergencies as I don't expect much water there. For ejector pump I'll go with all-in-one pump that will be placed in sealed reservoir under floor. Better redundancy and avoiding accidental mix of sewage and drainage this way.

Answered by lietus on September 27, 2021

Ejector pump instead of sump pump in basement

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