Originally Posted by JEN
First year winterizing the trailer... there is a bypass valve on the water heater but no access point to put the antifreeze. Help??
You should have an "Antifreeze Inlet" right between the city water connection and the water tank fill port. Turn off the valve that goes from the water tank to the pump and turn on the valve that goes up and leads to the antifreeze inlet. Put a hose in some antifreeze and turn on the pump. You should get a bypass kit or one of those solid plates for the water filter canister so you don't use so much antifreeze.
I have a 2012 Flagstaff 27BESS which is the exact same trailer and that's how mine is.