Black Tank vs Gray Tank

[Funkro]

I have a 2013 Rockwood 8329SS Signature Ultra Lite. Can anyone tell me whether the bathroom sink and/or shower drain into the black tank or the gray tank? If not, does anyone know how to go about finding out?
Thanks,

[Capacitor]

Pour 5 gallons of water in the shower and check gauges. Or empty both tanks, pour 5 gallons it the shower and see if it comes out the gray or black.

[Aussieguy]

sink and shower should be going to gray tank




If you want to test....... next time you empty the BLACK....

when it is empty and stops flowing into the sewer



run the shower and see if anything MORE comes out the hose....

[Reverse_snowbird]

Originally Posted by Funkro

I have a 2013 Rockwood 8329SS Signature Ultra Lite. Can anyone tell me whether the bathroom sink and/or shower drain into the black tank or the gray tank? If not, does anyone know how to go about finding out?
Thanks,

Showers are usually plumbed into the grey water tank. Bathroom sinks can be plumbed into either the black or grey water tank.
To find out, pour in water as suggested by capacitor with the bathroom sink and the shower.

Our rig's bathroom sink is plumbed into the black water tank and it took us some time to figure it out.

[bikendan]

Moved thread from the General Community Discussion section to the Rockwood sub-forum since the OP is asking for model-specific information and not a general question.

[CHICKDOE]

very easy to determine when you are hooked up to a sewer and if you have a clear plastic sewer hose extension. empty both tanks. then close the black tank valve. start running some water into the sink and see if it is flowing out the sewer hose. then do the same with the shower. if you don't see water coming out with the gray valve open close it and open the black. just run water and wee which tank it come out of into the sewer.

[Funkro]

Thanks - Good Idea