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Aluminum vs Stainless water tanks
I have stainless water tanks, 30 years old with broken baffles and beginning crevice corrosion. Repairing the broken baffles is going to run $600 per tank. That still leaves me with old thin-wall tanks with some evidence of corrosion and noticeable oil-canning issues.
So, I am thinking about replacements. Custom rotomolded tanks are the most expensive--the molds are the biggest expense. Would sure be nice though. But I will not consider welded seam plastic tanks. Too many reports of split seams.
New Stainless tanks are going to be above $4000.
I would like to hear opinions on using 3/16" 5052 aluminum tanks for water. How much does the chlorine in municipal water accelerate corrosion in aluminum? What other "gotchas" do I need to be aware of?