I have a 2004 winnebago adventurer 38R. Atwood GCH10A-4E.
We are done for the year and time to winterize. No biggie drain all the things and put in pink stuff. Can it ever be that easy? lol
So I drained the water heater first. Started with the bypass in the wrong spot, turned it to the bypass position and it stopped draining finally. Then I drained the fresh water tank and when that was done drained the water lines by opening the low point drain. Then I pushed in the anti siphon on the city water hook up and drained that.
Buttoned everything up with the exception of leaving the fresh water tank drain open and the water heater plug out.
I made sure the water heater bypass valve was for sure in bypass and started sucking water into the system and next thing I know its coming back out the water heater drain.
Am I doing something wrong or did the check valve take a crap. Is there any other valve besides the heater bypass valve that could cause it to fill the water heater?
So my million dollar question is... for now can I just fill the heater with antifreeze and deal with it when I have more time? I know it will add a $20 bill to the cost of doing this. I won't be in town to keep an eye on leaving something in the belly to keep it warm.
Will it hurt the heater? Obviously it will need to be drained and rinsed before use.
I just want to be done for now.