Lynnmor wrote:
Deb and Ed M wrote:
I always put about a quart of straight antifreeze in the black and gray tanks. The theory is that it keeps the seals on the gate valves lubricated and pliable
If you use the cheap stuff that contains ethyl alcohol, your theory may not hold water.
Yup..some antifreeze in the tank is good for lubricating the seals, and to keep any "stuff" on tank bottoms from drying, and turning to concrete.
Also agree, the cheap ethanol based, is not a best choice, and may evaporate, and dry out seals over time.
Jerry