Question about sump pump drain pipe
I am installing a sump pump, I'm pretty sure I have everything worked out except for where to route my water from the pump. Near where the outlet from the pump will exit my house I have a pool pump/filter with 1-1/2" pvc that wraps around my home to the driveway where the pools water drains into the street. I would like to utilize that same pipe for the sump pump as well but am concerned that when I do backwash or drain the pool that pool water will go back up towards the sump pump. Could I utilize a check valve on the sumps line right before the tee where it meets with the pools existing drain pipe, or will I need to replace or add another pipe to the driveway?