Winterizing our 2017 Keystone Cougar trailer using compressed air
Winterizing procedure for our travel trailer using compressed air:
- Blow out any stray water from the compressor connector.
- Empty the trailer’s water heater. Leave the plug out.
- Bring up the compressor pressure and adjust ‘tool pressure’ to about 30 psi Do not exceed 30 psi.
- Close all the faucets and taps in the trailer.
- Connect the compressor to the water intake connector on the trailer.
- Blow out the water heater first. Feel for air coming out the plug port.
- Once the heater is drained, take it out of line by opening the bypass valves in the trailer under the kitchen sink.
- Blow out the two kitchen sink faucets (hot then cold).
- Blow out the taps and faucets in the bathroom (2 sink faucets, the toilet, 2 bathtub faucets, the shower line).
- Blow out the outside shower (remove the shower head).
- Open the kitchen cold tap and run the trailer’s water pump briefly (to eliminate any water in the pump).
- Turn the RV pump off, and blow out the kitchen cold tap line again using the compressor.
- Disconnect the compressor.
- Drain the ‘low point’ valve, leaving the cap off (store in nearby storage compartment).
- Drain the red and blue low point valves that are nearby, leaving the caps off (store the caps in the nearby storage compartment).
- Empty the grey and black tanks, then close them up again.
- Put some antifreeze in each drain, including the kitchen (two sinks), bathroom sink, and shower. This is to keep the U-necks from cracking. This will also put a small amount of antifreeze in the two grey tanks and the black tank).
- Leave the fridge door and freezer door open during the winter.
- Bleed residual propane out of the lines by closing the tank valves and then lighting the stove. Let the flames die as the propane is evacuated.
- Disconnect the batteries.
- Leave all taps and faucets and spigots open during the winter.
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