1. The faucet pipe is blocked. The faucet is blocked due to impurities such as sand and rust in the water. At this time, we can close the main valve of the water pipe and the water meter, and then open the water pipe to see which one is blocked. If we only need to dredge the clogged place, the flow of the faucet will become larger. In order to ensure that it can be cleaned in place, the inner filter and gasket can be removed and rinsed. The dirt in the middle of the filter hole can also be pierced with a needle. Reinstall them after cleaning.