What should I do if the drainage hole of Xuanyi is blocked?

Small gravel and sediment often accumulate. What should I do if the drainage hole of Xuanyi is blocked? Can you handle it yourself? Small gravel and sediment often accumulate. What should I do if Xuanyi drainage hole is blocked? Can you handle it yourself? In fact, this situation is relatively simple to handle. Generally speaking, if the mud inside is blocked, these related drainage pipes can be directly sprayed through the high-pressure water tank. Generally, you can go directly to those related repair shops, or go to those car beauty shops or car wash shops and tell the master that you will get the money. This is relatively easy. You can also pay more attention to yourself when washing the car. Overall, the impact is still relatively large. There are two methods: the first is "enema". Connect the infusion tube with a syringe and rush into the drainage tube, which should make the drainage tube unblocked. The actual operation proves that this method is simple and effective. Before "enema", pump out the water in the skylight drain tank with a syringe to prevent water from pouring into the skylight drain tank and flowing into the car during "enema". The skylight drainage trough is low in front, and the water in the trough is concentrated in the front, which is mainly discharged through the front drainage pipe. ? You can't see the outlet of the rear drain pipe, and the lower end of the rear drain pipe needs to be lifted to see it, so you don't clean it, just clean the front drain pipe. About 150 ml of water was pumped out of my drainage tank, and the drainage pipes on both sides should be completely blocked. Cut off a section of infusion tube and connect a 50 ml syringe. The syringe is filled with clean water, and the end of the infusion tube is inserted into the lower end of the skylight drain pipe. At the beginning of enema, there was resistance when pushing. It doesn't matter. Don't push too hard, and then suck. The water sucked out is black and full of mud. Repeatedly, it can be solved. @20 19