deep water well advice

[TheGoose]

Sch 80 PVC with brass or stainless collars. Done.

 

[jinman]

??? what happens to that air in the pipe when the pump starts? I must be missing something but it seems it wouild end up in the pressure tank.

Harry K

Harry, that's exactly what it does. The tank is not a bladder tank, but a galvanized tank. The air fills the top of the tank and pushes the water level down until a float valve opens and bleeds off excess air. That way a constant level "bubble" of pressurized air is maintained at the top of the tank. The float/bleed valve is down about 14" from the top of my tank and also contains the pressure gage. I've had to replace the pressure gage, but the float/air bleed function has continued to work perfectly for 12 years.

 

[Aguanga]

My well is about 575' deep, static level is around 200', and the pump is set around 500' down. My pump installer used threaded 1.25" diameter Sch 120 PVC pipe sections with threaded couplings. Wells over 1,000' deep in my area are not unusual. The power cable is the only other thing going down the well (no pull cable/rope). This pipe is the standard around here for well pipe even on the deep wells. Pumps go bad, but I've never heard a single issue with this pipe setup.

 

[TheGoose]

BTW: Don't ever use a rope. More likely than anything else the rope will get tangled up in the pump and cause it to get wedged in the well.

Lot of people use black polypipe, but I personally don't like it.

Sch 80 pvc is rated for 800+ psi BTW.

 

[turnkey4099]

Harry, that's exactly what it does. The tank is not a bladder tank, but a galvanized tank. The air fills the top of the tank and pushes the water level down until a float valve opens and bleeds off excess air. That way a constant level "bubble" of pressurized air is maintained at the top of the tank. The float/bleed valve is down about 14" from the top of my tank and also contains the pressure gage. I've had to replace the pressure gage, but the float/air bleed function has continued to work perfectly for 12 years.

Aha! I wasn't aware that the float valve would bleed off excess air. Thanks.

Harry K

 

[amashinga]

Thank you everyone for all of the information and links. I am going to forget the rope idea and go to a pvc pipe. I dont know what the water level is but given that the well is only 1 gpm and I have never run out of water I would imagine I have a good couple of hundred feet of reserve in the well.

 

[tommu56]

my cabin pump is down 450 ft and used sure align pipe

it has the couplings attached and a bell to help align the pipe while threading in it is schedule 120 pipe heavier and a higher pressure rating than sch 80

PVC Shur-Align® Drop Pipe | Johnson Screens


I also uses a ss tee on the top of the pump and a pipe plug to close the horizontal part of the tee and 1/2" polyethelene rope for safety tied around the tee and I used the rope to pull out the pump and lower it back in when I had to lower the pump in the well when I ran out of water, but that is another whole story.

tom