DiamondWash
Well-known member
Complete floor heat flush n refill has anybody had this done recently and how did you do it? Our wash is going on 7 years and the floor heat system has worked flawlessly since then but now I am concerned about the strength of the glycol I tested it today and had 2 balls floating which indicates -10 protection on the chart and on the tester is says 2 balls floating indicates -40 protection. I am considering adding a ph booster.