I just looked at a two stop in-line CEMCO dual piston with MCE controls. The shaft walls are block. Water has been coming in for some time. One wall of the shaft is on the outside wall.

My question is "what can we use or do to improve this situation"? Has anyone tried installing PVC drain piping? What if I core 1" holes in the block and run PVC with clean outs to the sump pit? At least it would divert the water to the pump. They say they have replaced it several time in ten years. We are recommending a water level alarm.

Please let me know what has worked for you in the past.