I did read all the posts and it was kind of 50/50 on the way to do it.
We have decided that once we do have it shut off and blown out, that we are not going to turn it on again. The only reason its on now is because the walk thru guy had it on to show us everything was working.
Just wanted to make sure it would be in working order when I decide to sell the rv. Don't like surprises.
Thanks for the replys!