I can't say I've read all of the replies here, and it seems that there are some requests to supply us with a diagram. What I could add is that I've learned over some time now that a good, safe coolant could be 'propylene' glycol, versus the automotive coolant 'ethylene' glycol, which tends to kill animals who are won over by its aroma. There! I added something to a post. Hopefully it helps someone?
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