Water Heater Cross Connection

[phygenius]

We just purchased a used 2009 ROO 21SS and I noticed that there is a tube just outside the heater tub that connects the cold water input and hot water output with a valve in the middle. Any idea what this is for and what the valve position should be (open or closed)?

[MtnGuy]

You have found the infamous winterization bypass valve.

When you winterize, you close the 2 valves going into the heater, and open the bypass valve. That way, you don't need 6 gallons of antifreeze to fill up your water heater. Of course, you will need to drain the water heater by unscrewing the drain plug at the bottom of the outside of your water heater.

[TURBS]

Dealer should have showed you that during pdi.
id be Leary of your dealer ..........
With that said welcome to the forum and congrats on your new unit!
Check out the forest river faq section there's lots of info there.

[F.R.O.G.]

Mtnguy nailed it. When you're in camping mode, that crossover valve should be closed. If you leave it open, you'll have cold water from the input side of the water heater mixing with hot water from the output side, and you'll only end up with mildly warm water for your showers.

[bikendan]

agree with others.

couple of suggestions, since you're new.

posting pics of the items you're asking about, always helps a lot.

also, be sure to visit the Roo or Shamrock sub-section, under "Expandables/Hybrids", for more info and mod ideas.

[TURBS]

Originally Posted by phygenius

We just purchased a used 2009 ROO 21SS and I noticed that there is a tube just outside the heater tub that connects the cold water input and hot water output with a valve in the middle. Any idea what this is for and what the valve position should be (open or closed)?

also it helps to completely fill out your profile so we know what part of the world your from and what kind make model and year unit you have such as my signature below .