Winterizing City Water Inlet Question
I've never done anything with that and have been lucky so far. I didn't know until recently anything needed to be done. But in checking a list of winterizing steps it said to turn off the pump after...
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The city water inlet has an anti siphon valve built into it. This prevents water from backing up into the hose and then into the public water supply. The anti siphon valve allows water to flow in only one direction unless you defeat it temporarily for winterization. When you pressurize the water system with anti freeze and then defeat the anti siphon valve, anti freeze will apear at the valve due to the pressure in the system.
Most of these valves are plastic and can be broken very easily. What I suggest is a shot of air using an air valve adapter. You do not need to take anything apart. Do this before introducing RV anti freeze and open all faucets and drains before introducing air. The air will clean out all water in the valve area and most of the water in the system. After the air I winterize with antifreeze.
Most of these valves are plastic and can be broken very easily. What I suggest is a shot of air using an air valve adapter. You do not need to take anything apart. Do this before introducing RV anti freeze and open all faucets and drains before introducing air. The air will clean out all water in the valve area and most of the water in the system. After the air I winterize with antifreeze.
