Grey water tank sludge
Helping a friend with her grey water tank issues. 2009 36 ft. Motorcoach The tank drains very slowly. About 4 months ago we drained the tank as best we could and then took apart the slide valve...
Forum Discussion
I'm betting she leaves the gray tank valve open whens she's parked. liquids run out but solids build up. After you get it cleaned out have her leave then valve closed till the tank fills and has more liquid to flush out the sludge. Heavy treatment of Dawn dish soap drive around for a while and drain. If it takes oil off shore birds it should work on the sludge. Have her do the Dawn each time she changes parks.
