thinkness of hull steel

[hpeer]

Thanks for the response. I get the general concepts, I need to dig more into the weeds. Not theory but practical stuff.

BTW...I try to avoid shore power. Can't always do it, but I try. Sometimes, often, I'll just use shore power to charge batteries and then run the inverter. But we really have only our computers that use AC. Switched to all LED lights etc to conserve power. That helps to avoid shore power.

[hpeer]

Quick story. There was a big ol steel trawler down the dock from us. Nice old couple. Had a leak or two in the hull. I asked about zincs. They said "what's that?" I bought them a couple of zinc fish. A couple of month latter the lady says "What's it mean if they turn white?" But they now sadly hVe bigger problems.

Had a steel house boat come in for a bottom job. When they scrapped the bottom it had HUNDREDS of holes. Absolutely amazing that it floated. No zincs, at least 6" of water in the flat bilge, interior steel never painted, BILGE PUMP DEFUNCT! Yet it was 20 - 30 years old. Still sitting in the yard, it needs a whole new bottom, or a crusher.