To winterize my summer place in Maine, I have been draining all of the water and replacing the water in the drain traps with regular antifreeze. I am having the plumbing replaced in the bathroom, and my plumber suggested that using RV antifreeze is much simpler and better. He suggested adding the antifreeze to the drains without first emptying them. In addition to the drains, he adds the antifreeze to the input hoses to the washing machine, the pipe with the shower head, and the shallow well pump.
I think the RV antifreeze should be much better than what I have been doing, particularly in the spring when I turn the water on. Now I have to go around and drain out the antifreeze before running the water. With the RV antifreeze I believe you can just turn on the water and flush it down to the septic system without harm.
Has anyone used this method? Does it really work well without first emptying the traps?
Thanks for your comments.