Hello All

The question I have is do I need a check valve from the pipe out of the well at my pad where my equipment is?

My current setup is pipe from well w/check valve goes to aerator with a 1/2 hp 12 gpm AERmotor sub pump then tank & softener then into house...I never understood the need for the check valve?

Would this cause uneeded back pressure on the in-ground / well pump?