Comment: sub pump pumps sewage to the main line. The alarm has went off and is continuous, I have silenced it. Water is coming out of the overflow pipe.
Comment: We have a large basin underground with 1/2 HP sump pump for French drains/ floor drains with removable cover. The alarm works, but we have not heard it run with all the rain we have had lately. THe reason we had it he pump put in is to bipass our French drainr that had collapsed in the area and was causing water to back up through our basement floor drains?