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continue our conversation.Since this hasn't been used in a couple years there's a pretty good chance the inlet strainer or foot valve is plugged or stuck shut. You'll have to pull the drop into the well to check this. You could also have a leak in the suction line. Of course a low water level in the well could also be the problem but I assume you checked that already. The air pressure in the tank should be set to 2 psi below the cut in pressure of your switch.
Sounds like you haven't pulled the drop into the well. You need to check the jet assembly at the end of the drop.
I think you're talking about a pit less adapter which is only used on drilled wells. You should have 2 drop lines into the well. Never saw a pit less on a dug well.
Yeah, you can wrap a chain around this adapter to pull the drop out
Depends on the type of piping. If it's black poly you can carefully pull it out with either. If it's rigid pipe (PVC) you need to pull it straight up which means a tripod and a winch.