Quote:
quote:Originally posted by Sheepdog
or better yet, aircraft grade welded aluminum tanks. I'd pay extra to have these.
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Hi
Aluminum is not recommended for use as tanks for anything that may become corrosive in nature from water to sewerage.
The aviation 2024 aluminum alloys are very brittle and will crack under repeated flexing this also changes depending on the hardening process used to harden the alloy.
The aviation 5XXX, 7003 and 7005 alloys are preferred for tank usage but are commonly only used for fuel, oils and Alcohol tanks but Stainless is still preferred for Alcohol.
The Stainless alloys are also prone to hardening and then cracking from working or flexing. This is one of the reasons Stainless is not recommended for boilers.
In my opinion the tanks being used are the best material they just need to be supported correctly. Two or three straps under the tank is probably the best way. This is what my friend found on his new SOB when he went looking to see about adding straps.
Phil P
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