Sink drains into sump
So I have a mess of plumbing for my kitchen sink and sump pump. the sink currently drains into the sump pumps dry well. obviously this needs to be fixed and connected to the septic long term but I have a short term question.
The sink drains all the way into the sump untill the pump comes on to pump it out (I can watch the water flow in when the sink is on).
should some kind of check valve be added to stop that from happening? is the white part in the vertical sump line a check valve that doesn't work?
thanks in advance