shouldnt be concerned with how the water line material stands up to a hard freeze. as stated, freeze is never good for anything.. so i'd leave it all pvc if thats what you choose to run. either winterize the well head (easy to do), or run enough water to cycle the pump a few times during a freeze like many people do. i'm not sure if it would be better for a pipe to go ahead and bust, or to freeze solid and deadhead/ruin the pump. best thing is to never let whatever material u choose freeze.
PVC breaks when frozen long enough; read like as little as 12-15 hrs. PE does not and can be frozen solid for days or weeks without breaking.
The best way to insure no freezing is to use a pitless adapter below the frost line for the area.
never even seen PE pipe so i cant help much with that. but,.. theres nothing wrong with primed and glued pvc pipe (20' sections with glued bells.. bell ends pointed toward the well head). there are several pvc ditches over 20rs old. why should anyone be concerned with expansion and contraction when installing a water line in a ditch underneath a frost line?
In the south where freezing isn't the problem it is in the rest of the country, expansion and contraction happens because the water line is only a foot or so under the surface and that is usually sandy soil. Sun heats it up and after sundown it cools.
the exposed well heads i can think of around SE only have 2 elbow fittings that could possibly freeze. one at top of well head, running over a few inches to another one that points down to ground. are you sure you've done this type of work before??
YOU WOULD leave exposed pipe 3-5' from the well head!! in most cases, even a DIYer can get a ditch pipe+wire close enough to an exposed well head that you can (depending on well diam.) put a bucket over all of it. again, i dont think you've ever actually done this stuff before...
You forgot the third elbow, the one underground by the side of the casing to get the line going toward the house.
So from the top of the well, over the few inches off the side of the casing and then down to below grade and then another el going toward the house is usually 3-5' of exposed pipe in my calculation. And my experience is that in the south much of the residential water line is not buried below the frost line. BTW, if I heard the report correctly this morning I think there was a 156 yr old cold record broken last night in south FL.
was 26 here last night. maybe there should be pitless adapters in FL too? lol
Wheres' here, recall you deleted your personal and location info. Anyway, rather than doing some sort of well head isulation that doesn't last well in the FL sun, a pitless adapter for like $100 installed is the best choice for all concerns. They last decades with no maintenance required and all that sticks up out of the ground is the well casing about a foot and a piece of electrical conduit up against the casing. Then using PE pipe for the drop pipe, DIYers can pull their pump themselves fairly easily; especially in the south where the pump usually isn't much below 150'
** i think the OP is on the right track. 365' is a nice shot, youd only wanna do it once and make it last. if ever planning on a larger pump and/or irrigation, i might drop 1.25"-1.5" sch. 40 in the ditch instead of 1". i'd go 50-60gal pressure tank if it was mine (flexcon and well-x-trol are the only tanks imo). if planning on using the cycle stop valve, i personally wouldnt use smaller than a 20gal tank with the valve.. just personal preference. should work very well whichever way you choose to go on that. good luck!
IIRC PE pipe has the least pressure loss/ft of any normally used water line material AND there are only two fittings; one on each end of the line. In 365' using 20' lengths of PVC there are many couplers causing pressure loss and with the possibility of leaks that are very difficult to locate and very difficult to fix because you can't pull any of the PVC either way to put in two couplers and a piece of PVC where you cut out the leaking joint or to install a repair coupler in some cases. Recall the PE wandering from side to side in the trench? That allows some slack if you ever need any.