2021 334BH dumping

[NavyWifeBoyMom2]

Hey all!

So we are new to the 5th wheel world and this beast was a load of fun and comfort on our first trip to Lake McConaughey. However we were failed by our delivery walk through tech in the dumping of the gray an black tanks. It's not our first RV (were 3 in and 2 years of full time) but we can not figure out the tanks and dumping them. It has two external hose hook ups with 2 gray valves and 1 black valve. In the main panel under the front bed slide out there are 1 of each gray and black valves. There is also 1 gray valve in it's own door. What it the tank set up on this rig? 2 black? 2 gray? What valves go to which tanks?

TIA for your help!

[Ram Montana High Country]

Bunk House is usually plumbed by itself. As always, dump the blacks first and rinse gray. Once empty, dump some die in a tank with water - then open on valve at a time.

Best I have

[NavyWifeBoyMom2]

There is a small bath with sink and toilet in the bunk but only 1 black valve in the front near the master bath. We uncapped the rear external hose cap and have gotten nothing from it. Do both toilets join to 1 black tank?

[Carl n Susan]

I don't have your model but Montana does not join 2 toilets to one tank. There is a separate pull handle for the BH tank. It is sticking out from under the frame, probably near the rear dump line.