2007 KS Challenger 29RKP - RV antifreeze connection??

[Garyl53]

This model has a "Water Center" that contains the fresh water and city water threaded hook-ups (for a hose connections) as well as the "T" handles for the black and grey water valves. In addition there are knobs labeled "By-Pass" and "Winterize". The mystery (to me) is another threaded hose hook-up. Could it be for the RV anti-freeze suction line to the pump? Any advice appreciated since it isn't covered in the manual and I can't access behind the panel very easily to see where it goes.
Thanks!

[Terry W.]

The bypass is to bypass water heater and not put antifreeze in heater. The winterize is on the water pump and yes it is the suction hose connection for short hose into antifreeze jug

[hankpage]

Originally Posted by Garyl53

This model has a "Water Center" that contains the fresh water and city water threaded hook-ups (for a hose connections) as well as the "T" handles for the black and grey water valves. In addition there are knobs labeled "By-Pass" and "Winterize". The mystery (to me) is another threaded hose hook-up. Could it be for the RV anti-freeze suction line to the pump? Any advice appreciated since it isn't covered in the manual and I can't access behind the panel very easily to see where it goes.
Thanks!

Yes, the extra female hose connection is for suction of antifreeze. Bypass the water heater .... switch to "Winterize" ..... Put a short piece of hose from that connection to a bottle of pink stuff, turn on the pump and open all faucets one at a time and flush toilet till all run pink ..... open low point drains enough to get pink there also. You will need more than one bottle of antifreeze. JM2¢, Hank

[Garyl53]

Thanks for the feedback. I winterized today and it was very easy with the one exception that the back flow valve at the city water inlet wouldn't close after I pushed it to let the antifreeze fill that inlet. Lost a bit of the pink stuff while rigging up a plug that would hold. I'll fix the back flow valve in the spring.

[SteveC7010]

Originally Posted by Garyl53

Thanks for the feedback. I winterized today and it was very easy with the one exception that the back flow valve at the city water inlet wouldn't close after I pushed it to let the antifreeze fill that inlet. Lost a bit of the pink stuff while rigging up a plug that would hold. I'll fix the back flow valve in the spring.

Too much pressure. Blows off the O-ring in the city water inlet check valve. You'll be replacing it.

[chuckster57]

Maybe, maybe not. I've had leakers that with the water pump on, a tap on the check valve allowed it to reseat.