sorry. been out of town, Gary. It' a submersible, steel casing, and that's all I know about the well . I replaced the pressure tank, and cleaned out all the aerators, which wer full of trash, and the water appears to be nice and clean and plenty of pressure now. I got trash and rust out of the old tank ( a.o.smith ) . I have no water softener or filter. .Pvc from the well casing to the new tank. Galvanized out of the bottom of the tank to a steel "t", then pvc and plastic to the house. The dirty water and low pressure has been an ongoing problem. mostly after a good rain. I was afraid the well was going dry, but now everything seems fine. Should I test the water, and/ or install a filter after the tank?