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Old 07-29-2008
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If you have a metal tank, you might also have baffles in it and need an inspection port between each baffle. My boat came with a 110 gallon aluminum tank seperated into three sections with a partial wall between them to limit sloshing of the water. Although there was an inspection port, 2/3 of the tank was inaccessable. I put in two more large ports to make it possible to clean the tank. With an aluminum tank you should not add chlorine, but with stainless it should be no problem unless you add too much. A teaspoonful of common household bleach (sodium hypochlorate solution) for every 10 gallons will make the water safe to drink, but may not taste good. One of the "undersink filter systems" sold in every hardware store will take care of the taste. Change the filter annually. I know Jim said chlorides will attack stainless, but think about it. City water in every city of the US is chlorinated, plumbing pipes in your house are copper, your faucets are either a brass alloy or stainless. Had any faucets crack lately? No, I wouldn't put chlorine in any form, bleach or anything else, in an aluminum tank, but a small amount of it will not cause a problem with other metals and can keep you from a bacterial infection! Aluminum is one metal particularly suseptible to chlorine attack, but stainless seems to resist the chlorine in salt water quite well! Salt is sodium chloride, and most sailors know aluminum becomes pitted when used on a blue water boat.
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1980 Endeavour 37 sloop, currently in the Mississippi near St Louis
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Last edited by RAGTIMEDON; 07-29-2008 at 01:09 PM. Reason: spelling
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