[NewellCrazy]

RV antifreeze, made from Polypropylene Glycol will not kill your grass, your dog, your goats, your uncle that drinks too much at Thanksgiving and Christmas, or even your chickens. I agree with Jon, I would not add it to your fresh water tank.

Here is some additional information:

Propylene glycol, the primary ingredient in RV anti-freeze, which is a common food additive that is also used in many other products such as cosmetics. It's both biodegradable and water soluble, and requires no special handling in normal consumer quantities.