How do you say snoring photography in English?

Don't say anything, something is stuck in the pipe. Snoring may be the sound of pebbles under the impact of water. When you close the valve, the water stops and the blockage gathers in one place. If the pipe is blocked, it will naturally stop heating! You can try to flush from the water inlet (valve) with a high-pressure air pump. If the blockage can be flushed into the main pipeline, it is not a big problem, but it is hard to say that this method can be dredged from the water inlet with steel wire (similar to sewer dredging), or both methods can be tried together. If not, we'll have to dig up the ground and reinstall it!

This is so frustrating. I wish I could help you. After installing the pipeline in advance, you must first suppress the test!