captive-air tank

I am considering moving my captive-air tank for my well from the pump house which is 400 ft. away from my home to the garage which is attached to my home.Will this increase the available pressure like I hope it will? Do the pressure guage and contacts need to be moved to the garage also or could they stay in the pump house with the well? I need to know if I have to run another wire in the ditch with the waterline and the wire (220v) which powers the submersible pump. Thanks, Jack
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The pump doesn't know anything about pressure of flow - all it knows is to run when it is told to. The pressure switch tells the the pump to turn on when the pressure drops to a certain level, then as the pressure increases, the pressure switch turns the pump off at a certain point. The pump control box has a relay in it to get the pump started, but really it is just a starting unit.
The wiring going into the pressure switch will be typical house wiring for a 230v system. From the pressure switch to the control box it is the same. From the control box to the well it is going to be a 3 wire w/ ground system (as opposed to a hot wire, neutral wire, ground type system (one extra insulated wire for pumps)). Now, this is a typical submersible pump installation - if it's a jet pump (on the surface) or a two wire pump, the story is a bit different.
SO, you could theoretically mount the pressure tank & switch at the garage & then mount the control box at the well head or well house.....This should increase pressure because the switch will now have to consider that there is friction loss in the pipe to the house instead of just ignoring that.... (by the way, the switch is solid state, I just like talking about these things as if they can actually think). I've never actually installed anything this way, and I'm not sure if there would be any voltage drop issues to contend with.
Your easiest solution is to go buy a pressure switch with a high on/ off value - say a 80/60 switch....But, then you'll have to take into consideration your existing plumbing - can it handle 80psi, vs the 50 or 60 psi it probably does now?
Good luck,
Pierce Kiltoff JKA Well Drilling www.jkawelldrilling.com
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