Bypass for water heater

it should be right by the waterheater

It's always behind the water heater.

Did you look on the back of the water heater?

Does it have one?

Sometimes it's considered an option and not automatically installed.
Here is a basic system that is very easy to install.....available at Amazon, most all RV dealerships, Walmart, etc....

Water heater by-pass...HERE

Being of simple mind I like the bypass arrangement that has three valves so it is obvious where the flow goes.
Shut off the valves at the Water Heater and open the bypass valve for winterizing. Reverse the valve positions for normal operation.

Dick_B wrote:
Being of simple mind I like the bypass arrangement that has three valves so it is obvious where the flow goes.
Shut off the valves at the Water Heater and open the bypass valve for winterizing. Reverse the valve positions for normal operation.

But then you miss out on the buzz and squeal from the check valve, not to mention the fun of replacing it when it fails. Also, the check valve saves some hot water when it reduces the flow.

Seeing as your Suburban Water Heater is installed at rear of trailer it should have an access under the rear bunk bed..a removable panel/floor section etc. Might have to pry it up if stapled down

OR might be accessible via outdoor kitchen compartment(if optioned)...remove drawer etc

I assisted a camper on one of my trips. we actually had to remove the inside lower cabinet wall. It had screws and was removable.