Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

8.1al · 10-17-2004, 06:57 AM

That sounds like your black water tank flush. The valve is a vacuum breaker. If you can figure a way to pump antifreeze thru the outside connection that would work or you could just blow some air through them.

10-17-2004, 06:57 AM	#4
8.1al Montana Master Join Date: Jun 2004 Location: Benson Posts: 3,121 M.O.C. #1658	That sounds like your black water tank flush. The valve is a vacuum breaker. If you can figure a way to pump antifreeze thru the outside connection that would work or you could just blow some air through them.