Remember, alcohol is alcohol.....whether it's in antifreeze, or gasoline, it can attack rubber and plastic components unless said pieces are made from a resistant material.

I'm not saying it would, when used in an aeration system, only that the science says it could.

Scott....you mean a propylene based antifreeze can be non-toxic AND there's a chance it might kill aquatic vegetation?? Now I'm twice as sold on using it!! laugh

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.