Welcome to the forum. Usually the handles will be gray for gray water and black for the waste .
The last connection I have is under the 5th wheel but actually has two handles, none of which are labelled. Are these for my master bath (grey and black)? If so, would my grey tank overflow into the galley tank? Thanks.
I don't think the extra gray water will dump into the main gray, at least it did not on my previous 5er. Later RJD
2015 35 FT V-Lite 30WRLIKS Diamond Package
2015 Chevy 2500 6.0 4:10 gearing.
Days camped in 2015--46
Days booked for 2016--60
Days camped in 2016 so far 51