i know it's controversial, but i use prestone (only the one with ethylene glycol, NOT propylene glycol) at a 50/50 mix with DISTILLED water (not "filterred osmozed equals distilled")
1 gallon is like 16$CAD at wallmart
I am into WC since 5 years, 3 PCs at home used 24/7
before doing that, i used osmozed water + dazmode additive (1 bottle per loop) + silver coil (genuine one from maheims)
results : LOTS of problems of salt deposits around the fittings, green corrosion om the waterblocks, etc. i had to dismount and clean everything once a year, with a toothbrush and vinegar. for each PC. it takes a full week end for each one, each year ! such a pain in the ace.
now after 6 months with prestone, i had to modify stuff on one PC, so I removed the GPU waterblocks : NOTHING , PRISTINE state, even in the smallests fins, not even tarnishing. The copper shinned.
disclaimer : wear gloves AND protective glasses. If you use pieces of cloth to manage the spills (you should), wash them separately from your regular laundry, twice.
Also open the window to get fresh air.
this stuff is a violent poison, and it's sweet. so close your door and do not let pets or toddlers get inside.
wash your hands and face after you are done.
tells your familly or pleople that live with you about what you're doing so they will take care not to touch those clothes or bottles
PS : the dazmode additive IS ethylene glycol (just read the label), just at an higher price. also a small bottle won't get you a 50/50 concentration that kills bacteria.
PPS : do NOT use prestone with propylene glycol. this stuf is used as food additive. so the bacteria likes it.
Last edited by neojack; 12-12-2018 at 02:27 PM.