Your Roadtrek Class B Motor Home should have separate grey and black water holding tanks. The easiest way to confirm this is to go to the sewer hookup on your RV and you should see two dump levers. One lever is for the grey tank and the other is for the black tank.
Just a reminder here; always dumps the Black Water Tank first then dump the Grey Water tank. The grey water will help clean out your sewer hose and allow for easier cleanup.
The second reminder is to always keep both dump valves closed even when you are hooked up to a sewer system at a campground. Once your tanks get close to full dump them and close the valves again. This is particularly important for the black water tank, if you leave the black water tank open when hooked up to the sewer the liquid will easily drain into the sewer, but the solid waste will build up in the bottom of the tank possibly creating a blockage.
We have a lot of good information on holding tanks on our website. Please take a look at the answers I gave to the questions below and that information will help you keep your holding tanks clean and problem free.
Just for the fun of it you should also read the story How Not To Dump Your RV Holding Tanks that we recently added to our Funny RVing Stories Page. Which reminds me; if anyone reading this right now has a Funny RVing Story that they would like to share with other RVers, you can submit your story to us by completing the easy submission form located on our Funny RVing Stories Page. If you are too embarrassed to add your name to your story, you can do it anonymously.
I hope that the above information has been helpful to you.
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