A foam car wash gun simplifies washing your car at home. One of these guns can be purchased at any discount store or auto supply store.
Step 1: Pre Clean the Car
A foam car wash gun will work better on a wet surface when a lot of the dust and debris have been rinsed away. Use a garden hose to wash down the car before you begin.
Step 2: Assemble the Gun
Read the instructions that come with the gun, but basically the steps to follow will be to unscrew the container that holds the soap solution and pour in some soap. Attach the gun to the garden hose. Most guns have a trigger or lever to push on to release the foam and mix it automatically with water. Test this before you begin. You will want to have the faucet turned on as high as it will go.
Step 3: Wash the Car
Start at the top or one end of the car and apply a thick coating of foam. It is best to mentally divide the car into three sections and do only one section at a time. Rinse the foam from the car before you move onto another section.
Some guns come with a scrubbing type attachment so you can rub the car as the foam dispenses. Most people prefer this type of system since you don't have to stop and use another sponge to rub down the car.