Re: How safe is watercooling currently?
If people accepted the performance hit and used 40% ethylene glycol antifreeze, you should be able to run (as I have) a system for 2.5 years with no water change. No biological growth, filming or other deposits as yet noticed*.
* I have not disassembled said system yet since temps are fine and tubes look clear and I don't have the time to just look at a perfectly functioning system.
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