not doubting you. just unfamiliar with that setup. It's unlike any water system I've ever designed or worked on.
around here.. black poly is mostly agg application..
we have black pvc as well as black abs. black abs are usually waste fittings
I have seen black polybutylene water line in manufactured housing.. and that would be potable / code.
I also , in industrial and underground utility applications.. like distribution, have seen black HDPE pipe.
i'm almost betting yours is butylene.. would make sense. Again. I work in florida.. I don't know any of your state codes.. etc. on;ly palces that really freeze here are in lil boxes attached to refrigerators..![]()
This...In the WELL CASING at the top (below frost line) is a "PITLESS ADAPTER" is it metal (Brass usually) and has two parts one inside and one outside. The Inside parts slip into a wedge opening in the bolts through the casing to the outside part. There is (usually 1") threaded that turns 90 degrees down the well and a (usually 1") going UP so you can drop a hunk of 1" pipe down and thread into the pitiless adapter and pull the pump up and out. The part left in the casing is tight against the casing so the pump can slip past & there is usually a O-Ring between the parts to keep the water from leaking past it. If you ever have to pull the pump be sure to look for the o-ring and reinstall with a good coating of Vaseline to help it slide & seal.
Most pump companies will use 20' sections of Schedule 80 Threaded (PVC) for the drop pipe but some older installs used the Black Poly (HDPE) in heavy wall version. There is Threaded connections on both inside and outside the Casing which can crack and or leak. There is a Rubber gasket between the casing and the threaded pitiless adapter which is what keeps ground water out.
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Mark
This...
But, I dont have a rubber gasket/shield.. Mne is just the pitless adapter
It may be butylene. I only called it "poly" for lack of not knowing how else to describe it.
I love Florida. I used to go there a lot. Would like to live there but the other half won't move.