Hot water heater bypass

Wow! I finally got something right!!!

cgmartine wrote:
Try looking under the kitchen sink.

Now why didn't I think of that. There it is. Did I say I love This forum. Thanks for all of the replies.

The 2008 models probably still uses the three valve setup...

My three valves are laying on the floor in front of the water heater behind a cabinet door... Maybe someone with your model RV will check in soon...

The three valve bypass does this... Note the oblong shape of the valves tell you if they are open or closed...



I am not a fan of putting the pink stuff through all the pipes etc etc... I drain all of my water from their low water points and blow out the lines with a 12VDc tankless air compressor. Then add some pink stuff to the P-traps... We camp alot off the power grid and usually late into the season. We can do this method anytime we need to and only takes a few miniutes... Then the next morning can just add water back into the tanks and go on...

Always a good idea to learn all you can about your RV Unit before getting caught out in the woods somewhere and not know where things are located...

Roy Ken

Biggest problem with filling the WH with antifreeze, is getting the antifreeze totally OUT in the spring. It's a pain.

As advised above, look for a line directly connecting the cold water in to the hot water out. You want to open the supply to that line and close it to the WH.

IF you can see the back of water heater and all the lines then look for the line that goes from cold inlet to water heater (bottom) and hot outlet from water heater (top)....that line is the bypass.

Need to close the cold inlet to water heater and open bypass

This can be done several ways...depends on valving used

Cold inlet can be a 3-way valve (cold inlet one way---1/4 turn bypass) and hot have just a check valve
Cold & hot could have 3-way valves (both have to be turned 1/4 to bypass)

If you run RV antifreeze into water heater it will take 6-10 gallons (depending on WH size) just to fill WH tank.
Then come spring you have to flush flush rinse rinse and still have foamy hot water.

Try looking under the kitchen sink.