Thanks! Yeah, sorry I wasn't more specific! That's the style of heat exchanger I'm looking into changing over to. Well, this one exactly. I believe it's stainless steel with copper brazing. I'm not planning on pumping the pool water directly through the existing condenser loop. But I read that over time chlorine breaks down stainless steel and copper, which could end up disastrous for the plate heat exchanger.

So my main question is: will the PHN Nuke biocide be enough corrosion protection in the "inside" loop with the miners? I've never run distilled water thru it, only the 50/50 antifreeze.