Need help. Two gray tanks and a black tank, each with a valve that I can find and know how to use. Today while snooping around under the TT looking for a good place to install my 5x5 fence post covers
, I found another smaller, different style of valve up higher under the skirt. It is in the same area as the grey and black tank valves. Smaller handle, and the working end disappears up into the under belly insulation.
Didn't see it during PDI and tech didn't say anything about it. Any ideas?
Brian, Stacy, and the girls (8 and 5)
2011 F-250 CCSB 6.7L PSD 4WD
2013 Solaire 269BHDSK