How to Winterize a Pressure Washer
Learn how to properly winterize your pressure washer by adding antifreeze to the pump, draining the oil, and adding oil to the piston. Read the full article for a step-by-step guide.
How to Start a Pressure Washer
Prevent pressure washer performance problems with this article's steps for correct pressure washer setup. Correctly clearing air from your pressure washer also prevents damage.
The part number 518470001 TRV spout, covers the part number 678169004 thermal release valve. It's purpose is if the thermal release valve happens to open, it will guide the pressurized water in one general direction instead of just releasing it all over.
First you will want to make sure that you are using the correct nozzle. There is a specific soap nozzle that must be used. It is the lowest pressure nozzle. When any of the higher pressure nozzles are used the soap valve is closed and soap will no longer flow to the pump. If the correct nozzle is being used and the soap still will not flow then you likely have a chemical injector valve that is corroded or plugged with dried up soap. You can unscrew the nipple where the chemical hose attaches to the pump. Beneath the nipple there will be a spring and a ball. Remove the spring and ball and clean them. Also clean the opening that they where in. Reassemble everything and it should work fine.
Unfortunately Ridgid does not offer any repair parts for the pumps on most of their pressure washers. You can purchase the entire pump assembly. It is part #308694002 and is available from http://www.ereplacementparts.com.