2015 xlr 385

[Dave.zanicky]

Can anyone tell me were the drain valves are located at my black water tank valves are leaking discussting every time I have to take the cap off

[REPO]

They are unde your trailer. If you have an enclosed underbelly, you will need to remove it (drop it down) to access them.

[dwhit]

Our 2014 XLR415 does same thing...irritating.

In my case the knife valve is leaking.

[taylorjw0831]

I put a valve on right at the cap. It saves a lot of unsavory messes for sure. Plus if I ever open the wrong valve on the control panel it is a life saver.


2016 GMC Denali 3500 Duramax DRW
2017 XLR Thunderbolt 340AMP