I am the second owner of a 2005 Fleetwood Southwind. I suspect there is some sludge or grease buildup that causes the gray tank to drain slowly. Can anyone recommend something to break it up?
my son had a grease plug in his and it drains so slow, so we used a knock off flush king to break it loose and it drains great now. I had an older TT I installed a quickie flush in and it kept the tank very clean.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,277 PostsLatest Activity: Jul 02, 2025