What are the 4 valves for?

[kingpin107]

Hey folks,
2018 Montana High Country 362RD
Brand new to this RV thing and dealer was not clear on the four different dump valve handles. Two in the convenience center are the main black and gray tanks, then the one near the back above the second dump is for the kitchen gray tank (I think), but there is another one (silver handle) right above the primary dump? Is this to dump the fresh water tank?
Thx.

 

[RMcNeal]

Fresh tank doesn't normally have a dump valve like that. Do you have a second bathroom? Could be a second black tank.

 

[Mikendebbie]

This is my GUESS at where the tanks are for that unit.
There should be pull handles in the wet bay for the main tanks.
You will probably find the rear handles by crawling under the driver side living room slide.
The water tank will have a pex pipe with a screw on cap sticking out below the coroplast bottom behind the axles.

 

[kingpin107]

Fresh tank doesn't normally have a dump valve like that. Do you have a second bathroom? Could be a second black tank.

Yes second bathroom. I have 4 valves - 2 in the convenience center, one under the first slide, and then another under the rear slide. Do I have four grey/ black tanks possibly?

 

[kingpin107]

This is my GUESS at where the tanks are for that unit.
There should be pull handles in the wet bay for the main tanks.
You will probably find the rear handles by crawling under the driver side living room slide.
The water tank will have a pex pipe with a screw on cap sticking out below the coroplast bottom behind the axles.

Man I wish Keystones owners manuals were worth a darn.

 

[Mikendebbie]

This is my guess for the tank layout in my rig which has 2 bathrooms. I have never taken the coroplast bottom off to see the exact plumbing layout, but I have a single outlet connection for the sewer hose hookup.

 

[BB_TX]

Yes second bathroom. I have 4 valves - 2 in the convenience center, one under the first slide, and then another under the rear slide. Do I have four grey/ black tanks possibly?

You probably have a main grey tank, a galley (kitchen grey) tank, a main bath black tank, and a second black tank for the half bath.

 

[Speck56]

Yes second bathroom. I have 4 valves - 2 in the convenience center, one under the first slide, and then another under the rear slide. Do I have four grey/ black tanks possibly?

You have 2 grey and 2 black. When you dump, have a clear dump attachment to the sewer and watch what comes out. You'll figure it out real quick