Are there check valves
Are ther check valves on suburban water heaters and if so where are they
Forum Discussion
Mile High wrote:
Check valves are only provided if the rig is equipped with a single valve winterizing system. It is on the hot outlet side and prevents antifreeze from returning to the tank with the bypass on.
A winterizing system with two valves, or no winterizing system, does not require the check valve and it may not have been installed.
Depends on where the 2 valves are installed.....
If just a cold inlet and a bypass valve then hot outlet would need a check valve to stop backflow when in 'bypass mode'
IF the 2 valves are 3 way valves then there may not be any check valves.
All depends on how/what is installed.
Sometimes the check valve is on cold inlet, most times on hot outlet.
They are an internal part of the 'nipple' right at the tank.
