I would use a sch120 pvc and a well puller like the one in the pic above .When you say 120lbs is that the full weight that would be hanging from the pitless adapter? Also if I am just running the water for a few days w/o the pressure tank, what happens when the pump is turned on but the hose bib is closed? Does it just build pressure in the line? Is there a risk of burning out the pump? I plan on using 160 psi poly pipe for the drop and run to pressure tank.
100’ of pipe is 40 pounds the pump is 30ish and the wire
So 90lbs plus wire and fittings
So yes that is the weight with 1” we’ll drop pipe .
Pulling it with water is 40lbs more
You cant run a pump agents a close valve it could boil the water and burn up the pump
Orrrrrr blow the pump off the bottom of the pipe ?
I would use a a 6’ safety rope tied to the pipe and taped over so you can’t louse the pump .
Use pump tape
I pump into a open tank all I did is power the 120 v pump to a timer
Pumping for 30 min get me 180gallons
The cabin is Pressurized by 120 V RV pump with check valve and pressure switch