Well Pump Wire
what size gauge romex to use for a well pump?
We have a well at the deer lease that is has a 3/4 hp pump, that is wired for 220. We have a 6500 kw generator that runs it with no problems. What we want to do is run piece of Romex/wire from the pump site to where we keep the generator. This may sound lazy, but it gets redundent rolling the generator back and forth. Especially in bad weather. We would be talking a distance of no more than 200 feet. Any suggestions? And if you know what the cost would be for the grade of Romex/wire.
You didn't say how deep your well is, and if it is a three wire or two wire pump. A three wire pump needs 220 V and a two wire requires only 110V. The reason that it is important to know the depth is it will affect the total head that the pump has to work against. If the water is fairly near the top of the well, there isn't much lift, so a lower head. My well at home is 200 feet deep so there is a lot more head to overcome.
Also with a 200 foot run from the well to the generator, you are trying to overcome the resistance of the wire. I would say that 10/3 WG (with ground) would be the minimum for a run of this distance, and not knowing the total dynamic head. If your well is very deep at all, 9/3 WG wouldn't hurt.
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Twin Oaks Community Ag Well Pump Replacement
