BudFoster37ExplorerNov 07, 2014Gray tank drains slowlyI 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?
64thunderboltExplorer IINov 08, 2014put a small bottle of Dawn down the drain, fill the tank and let it sit for a few days.
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