Why is the car wash gun not spraying water?

[McVivian]

Sometimes the car washer doesn't draw water when plugged in because the valve spring is too tight. When used for the first time with no water in the pump body, the pump spins empty, sucking air and failing to open the valve. After plugging it in, suck briefly at the pump's outlet with your mouth, then place it in water to draw water up. Prepare car washing tools: The tools for car washing are simple: a bucket, car wash sponge, spray bottle, car wash wax, and several towels will do. It's best to use specialized car wash towels as they have strong water absorption. Find a good spot and clean the drainage channel: Before washing the car, find a suitable location, avoiding dusty roadside areas if possible, and in summer, avoid direct sunlight. After parking, clean the drainage channel below the windshield first. Otherwise, dirty water will accumulate here and may even flow into other areas where it shouldn't.