Pressure Tanks..........

Goose

Well-known Member
A thread below reminded me to ask a question I've been meaning to ask.

I've heard of underground buried pressure tanks for a well. Do these go below the frost line? If they do, and since water can be hit at around 20 feet on my place, a buried underground pressure tank would be a simple way of putting a hydrant next to a building without having to heat the building.
 
I've got a bury system. Below the frostline,yes. Right next to the well. The hydrant is in the yard about 20 feet away. Mine has an air hose on it with a valve so I can add air if need be. That's inside a piece of 4 inch PVC with a rubber cap over it.
 
You only need one pressure tank for a system. Bury a septic tank and knock a hole in the top for access. Put your tank, and in your case, pump and electrical controls in the tank and the run your lines and hydrants to wherever. a decent frost-free hydrant will have the valve below frost and function in any weather. The tank and pump are protected by the tank and the fact that it's below the frost line, and you have an area to work on them.
 
(quoted from post at 14:38:26 02/10/16) A thread below reminded me to ask a question I've been meaning to ask.

I've heard of underground buried pressure tanks for a well. Do these go below the frost line? If they do, and since water can be hit at around 20 feet on my place, a buried underground pressure tank would be a simple way of putting a hydrant next to a building without having to heat the building.

A pressure tank needs to be where it cannot freeze. Either below the frost line, or in a pit that is insulated and maybe even heated. Many farm houses had the pressure tank located in the basement.
 
Many years ago I had a dug well with a pump down in the well, and wanted to pump water to heated water bowls for cattle. So I buried 3 well tiles beside the well , and put the pressure switch and tank in there. It is still there , and working just as it did some 25 years ago.
 
I did similar for a house trailer. Put two pieces of big concrete culvert on end next to the well casing. Glued some foam insulation around the inside about 12" down, and cut a foam plug that fit down on top of that. Concrete lid on top. Only problem was it was a bit tight in there hooking up lines with me and the pressure tank down in the bottom.
 
I have a system very similar the the one described by RR Lund. Years ago one of the local well drillers bought up a bunch of old military surplus buoys or similar tanks and used them for underground well tanks. Mine is buried right next to my well, and a copper air line with a valve comes up inside of the well casing for adding air occasionally. I don't know exactly how deep it is, but it's never froze as long as I've owned it (30+ years). I asked my well guy one time why I had to add air once in a while, because I thought the tank might have a leak, but he said that over time the air gets absorbed in the water and gradually lowers the pressure.
Not exactly a state of the art system, but it's never given me any problems.
 
I am a little late for the party but here is my input. When I was putting a pump system into mobile homes I could buy below ground pressure tanks and I did install a few. The reasoning was that by burying the tank we could avoid the risk of condensation leaking from a tank inside the mobile home and causing mold and floor problems. The tanks were of a special design that could not rust or otherwise deteriorate and were buried well below the frost line. I have not checked lately and I am not sure that they are still available. I have not known of any that has yet failed.
If you have a drilled well you can put in a frost free hydrant even if you do not have good drainage. Post a message for me and I will explain the process. Happy farming.
 
They're still available. Royse posted a picture of one not too long ago that had been installed at a friends house. He was concerned about the pressure switch and gauge freezing,but those systems use anti freeze to the gauge and switch.
 

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