Make sure if you have fresh water flush valves on your grey and black tanks that they are shut off. If not, you can fill your tanks with fresh water and it can back up into your shower, ect.
Senior Member
Make sure if you have fresh water flush valves on your grey and black tanks that they are shut off. If not, you can fill your tanks with fresh water and it can back up into your shower, ect.
Pete & EJ Petree
2001 Prevost Featherlite Vantare
2008 Ford Explorer Sport Trac 4x4
Sealy, Texas
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