Winterizing RV – How to Winterize Your RV

WINTERIZING RV – RV components can be damaged from the effects of freezing and ARE not covered under any warranty. Protection of the plumbing system and related mechanisms is very important. Winterizing RV services are available from most camper and RV sales and service centers however, some recreational vehicle owners choose to do it themselves. There are two methods used to winterize RV:

#1 – Dry Winterization using Compressed Air

This method uses compressed air to blow out any remaining water in the system after draining it of all water. This method requires an air compressor and the appropriate adapters.

1. Purchase 1-2 gallons of RV non-toxic anti-freeze.
2. Drain the fresh water tank and empty the waste water holding tanks*
3. Turn water heater by-pass valve to by-pass position.
4. Drain water heater.
5. If installed, remove water filter from assembly and discard. Install diverter if included.
6. Open all faucets including shower-head, sprayer, toilet flushing device and any other water lines that are closed.
7. Turn on the water pump for 30 seconds to clear out any water in the lines.
8. Connect an air hose with an adapter to the city water fill connection.
9. Set pressure no greater than 30 pounds and blow out the water lines until no water can be seen coming out of the fixtures and lines.
10. Pour RV anti-freeze into drains, p-traps, toilets, and tanks.

#2 – Wet Winterization using RV Anti-Freeze

This method uses a nontoxic potable RV approved anti=freeze in the system and does not require any special tools.

1. Purchase 4-6 gallons of RV approved, non-toxic anti-freeze.
2. Drain all tanks: fresh water and sewage tanks.*
3. Turn water heater by-pass valve to by-pass position.
4. Drain water heater.
5. If installed, remove water filter from assembly and discard. Install diverter if included.
6. Turn on pump switch and open cold water side of all faucet fixtures. Leave open until the anti-freeze comes our. Repeat hot water side.
7. Flush toilet until anti-freeze begins to flow into the bowl and then pour one gallon of anti freeze down the toilet to winterize the black tank.
8. Pour anti-freeze down each shower/tub, lavatory sink, and kitchen sink to fill p-traps.
9. To winterize grey tank(s) pour one gallon down each related sink drain.

**Winterizing your camper when you do not know what you are doing can be extremely costly!! These instructions are general and are intended for information only.  It is recommended that you have your camper professionally winterized.  If you choose to use the information provided, All About Campers is NOT responsible for any injuries, damage, or problems that may occur. It is always best to allow a professional to winterize your unit.

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