Dec. 14th, 2009

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Tomorrow morning I'll tap into the house gas line, and my goal is to test both kiln burners and also to get a measure of the gas pressure available here.

I brought home my Honda generator and a propane stove to have in an emergency. Pumping water would be one of the most useful reasons to have a generator, but my little 650W generator doesn't have the oomph to drive a 220V 40amp well pump. A quick solution might be an emergency manual pump, and in the long term, the best thing might be a new 24V DC well pump powered by two 12V solar panels and storage batteries.
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I was just reading up on 24V solar well pumps, and it seems that they don't provide the volume and pressure to supply a house properly. They are good for maybe one faucet and 24V systems don't work well with pressure tanks, which I have. If I really wanted a full time solar powered well pump, suitable for irrigation and providing water to the house, I'd have to buy a whole series of large panels and sophisticated hardware and produce 220V power.

The best solution might be to buy an emergency 12V well pump and move my little 12V solar panel system from work, and install it here, on the roof of the shed. The solar panels could charge a largish 12V storage battery, and both light the shed, and in an emergency, pump a limited amount of water. My existing 650W generator can recharge 12V batteries, so if I had to, I could pump more water, in stages, by first exhausting the battery and then recharging it with the gasoline generator.

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