Hot water heater check valve

[Blehman]

Hello everyone. I have question I would like to put out. My hot water heater today decided that it was not interested in giving me hot water pressure. Everything I have found on you tube tells me it’s a check valve to keep antifreeze from flowing back to the water heater. I have the nautilus system with the color dials for dry camping, winterizing or city hook up.

The question is…… Do I need the check valve? The nautilus system should keep antifreeze out shouldn’t it? Any information or feedback from the group would be greatly appreciated.

[BreakfastinAmerica]

Yes, but don’t purchase another plastic one. Easy to replace.