How do I prepare my gas pressure washer for storage?
Tools that may be needed: socket or spark plug wrench, 1/2 oz. engine oil, fuel stabilizer (optional), clean rag, funnel, 12" – 14" length of garden hose or equivalent, 1-1/2 – 2 cups of RV antifreeze.
Steps to take:
- Remove fuel from the gas tank and run the pressure washer in a normal operating mode until the engine stops from lack of fuel.
NOTE: Normal operating mode means that the water supply is connected, water is on, high-pressure hose and gun are connected and gun trigger is squeezed so water is coming out of the gun.
- Stop the engine, turn off the water supply, and squeeze the gun trigger to release pressure in the hose.
- Disconnect the water supply and high-pressure hoses from the pump and shake water from each. Hold the gun and lance in vertical position and squeeze the trigger to drain water.
- Disconnect the spark plug wire and remove spark plug. Pour 1/2 oz. of engine oil into the spark plug hole.
WARNING: Never pull the starter cord on the engine when the spark plug is removed unless the spark plug hole is covered. Fuel vapor from the hole can ignite by a spark.
- Place a clean rag over the spark plug hole and slowly pull the rope several times to distribute oil.
- For winter storage continue: Insert 12" – 14" piece of garden hose into pump inlet.
- Place funnel in the other end of the garden hose.
NOTE: Read the manufacturer’s instructions for safe handling and disposal of RV antifreeze.
- Pour approximately 1-1/2 – 2 cups of RV antifreeze into the funnel.
- Pull the starter cord several times until the RV antifreeze comes out of the pump outlet through the hose, gun and lance outlet connection.
- Disconnect the high-pressure hose from the gun and drain the hose. Hold the gun and lance in a vertical position and squeeze the trigger to drain the water out.
- It is always a good idea to store gun/lance/hose in a heated area.