Winterizing using an air compressor
Winterizing – Air compressor method – Minnie 2250DS This is specific to our Minnie but applies to most RV trailers, the only difference is the location of the items listed. I have included photos o...
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Bigbird65 wrote:
Winterizing – Air compressor method – Minnie 2250DS
This is specific to our Minnie but applies to most RV trailers, the only difference is the location of the items listed. I have included photos of these items.
1. Start by draining the 3 tanks.
2. Open a water faucet. Turn on the water pump for about 20 seconds to run it dry.
3. On the outside of the Minnie drain the water heater by removing the drain plug or opening the drain valve, see photo. Lift the lever on the relief valve to vent air into the tank. Drop the lever when draining the tank is finished and reinstall the drain plug.
4. Bypass the water heater.
5. Put 35 psi air on the city water inlet and open each faucet in turn one at a time to blow out water until you only get air then close the faucet. Don’t forget the outside shower.
6. Open the toilet valve to blow out the toilet.
7. Open the low point drains. After 5 minutes, remove the 35 psi air.
8. Blow out the black tank blow down line by using the 35 psi air.
9. The fresh water pump has a filter on the inlet of the pump. Make sure there is no water in the filter. If necessary unscrew the clear cup on the filter and empty it.
10. Put some pink stuff (RV anti-freeze available at Wal-Mart) in the sink drains and lavatory drain and enough in the shower drain to get it to the gray tank discharge valve.
11. Also put some pink stuff in the toilet and flush to get it into the black tank discharge valve. Leave a little pink stuff in the toilet. Return the water heater to the normal or non bypassed condition.
12. Close the low point drain valves before the next camping trip. Also, fill the water heater by opening a hot water faucet with water pressure on the heater before the next camping trip and after all danger of freeze is gone.Do this before turning on electricity or propane.
I tried this method on my Diesel Pusher and also ran the pink fluid thru all the lines after the blow out. I found that I could just run pink thru the system only without any blow out and never had a break in 14 years, while living in Boulder, Colorado.
