I would sure make sure which connection sends water to what holding tank before I took a shower.....lol.....in my pic of our connections on our Silverback...you simply move the handle from city water connection to fresh water connection depending on where you want to send water, however, the actual hose connection is black ...it's hard to see in the pic but there is a black connection near the tank release levers for hooking another hose for the black tank flush.....like you said it's odd that Coachman would use that color scheme for identification.
Lloyd & Kathy & Kit(17 yr old cat)
2014 Forest River Cedar Creek Silverback 33RL
2016 Chevy 3500HD Z71 LTZ 4WD Crew Cab, DuraMax/Allison.
2014 - 38 nights/3500 mi.
2015 - 66 nights/6260 mi.
2016 - 33 nights/4707 mi.