Originally Posted by rboschert
I have a 2007 Designer 5th wheel. The black water tank will not drain when I open the valve. How can I get it to drain?
Welcome to the forum.
Seems likely it is one of two things: The valve isn't opening when you pull the handle, or something is plugging the tank or sewer pipe.
Is this a new-to-you trailer and the first time out with it?
Is the gray water draining OK?
Sherm & Terry w/rescues Steve (std Poodle) & Eydie (min Schnauzer)
2015 Jay Flight 27RLS (Camped: 102 nights 2015, 90 nights 2016)
2006 Ford F350 6.0 PSD, Lariat, 4WD, CC, LB, SRW, auto., Camper pkg.