bacabunch wrote:
The cleaning system, hook a hose to the outside hookup and it sprays out the black tank. The water left is in the bottom of the black tank not the bowl. Does the water ever completely drain from the black tank? Im sure im over thinking this but im sure rv antifreeze will just mix with any water residue.....
Honestly. NEVER leave the black tank completely empty, always leave a couple gallons of water in it to keep it from drying out, and causing a septic smell. I leave about 4 gal in mine with tankchem in there.
and there is no need to put antifreeze in there. Freeze damage only occurs when there is no room for the water to expand, once it starts to freeze. If you have 5 gal in a 30 gal tank. There is plenty of room for expansion.
