How to Apply Detergent Using Your Pressure Washer

How to Apply Detergent Using Your Pressure Washer

To apply detergent using your pressure washer, first prepare the unit for standard operation by referring to our article on how to start a STIHL pressure washer. When you are using detergents, ensure the black low-pressure nozzle is attached to the gun and wand assembly.

Locate the clear detergent pick-up hose that is already attached to the pressure washer pump. Simply submerge the end of this hose into the bottle of detergent, and make sure it stays submerged during the washing process.

After attaching the hose to the gun assembly, you're ready to start cleaning with detergent. When using detergent on a house or other building, start at the bottom and work your way up to avoid streaking.

When you are ready to rinse, remove the injector hose from the bottle of detergent. Replace the black detergent nozzle with a high-pressure nozzle. Then, beginning at the top of the building, rinse until all of the detergent is removed.

TIP: Thoroughly rinse all surfaces. Do not allow detergent to dry on the surfaces you are cleaning.

NOTE: Some siding manufacturers do not recommend using a pressure washer to clean their siding products. Contact your siding manufacturer for proper cleaning instructions.