Winterizing: Holding tanks dry or not?
I am sure this has been addressed to death, but I have done a search and can't find the answer. I am doing my first winterization (Pennsylvania) and I don't know if I should completely DRAIN my hol...
Forum Discussion
brirene wrote:
Sorry to swim against the current, but I wouldn't. Make sure there is some af in the black tank. Others are ok to dry out, but if there is any residual "stuff" in the black and it dries out, you've got potential problems in the spring. Cheap insurance.
Actually I leave about 5 gallons of water, yes water in my black tanks even here in Northern Wisconsin where temps can get down to 30 below or lowerer. Remember if water has a chance to expand,and those are plastic tanks, not steel or cement they will give. Besides that is less than 10% of the available room in the black tank.
