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Old 10-06-14, 08:14 PM   #7
jeff5may
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Here's a compatible HX:

https://surpluscityliquidators.com/v..._TON_COAX_COIL



The only hx tube material more chemical resistant than cupronickel is titanium. Turbotec makes a line of titanium-plumbed coax coil heat exchangers, the pool safe line. Needless to say, these are nearly impervious to corrosion, and fall out of DIY-budget range.
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