White tongue is a coating of debris, bacteria and dead cells on your tongue that makes it look white. Although the appearance of white tongue may be alarming, the condition is usually harmless and temporary.
How a pressure washer works. Here's a quick summary of the basic principle: 1  Detergent flows in from a bottle or container through one hose. 2  Cold water flows in from a faucet (tap) through another hose and is filtered on the way in.3  An electric motor or diesel engine powers the washer. Cold water flows in from a faucet (tap) through another hose and is filtered on the way in. 2  An electric motor or diesel engine powers the washer. 3  Powered by the engine or motor, a water pump (impeller) draws in the detergent and water and mixes them together.
Part Information. This manufacturer-approved unloader valve kit (part number 315747GS) is for pressure washers. Unloader valve kit 315747GS includes the parts needed to replace the unloader valve, which opens to relieve water pressure and recirculate water through the pump when the spray wand isn't in use and the pressure washer is running. Wear work gloves to protect your hands when installing this part.