Looking to put a new well in at my sons house. Already over budget and doing most the work ourselves. Well is 400 ft deep and static in at 330. Question is: PVC or Poly but I already think Poly is out as it is only rated at 200 PSI and we are close to that with head pressure and 50LBS. So if PVC, should we use schedule 80 0r 120 and pros and cons to using the type of pipe threaded male- femal or male- male with couplers. I was told the pipe with female threads tent to crack the female bell coupler end?