1. If the amount of water flowing out of the faucet is very small after the faucet is turned on, it may be that the inside of the faucet is blocked, especially for the internal bubbler, if it is used for a little longer, it will produce More scale and stains need to be removed and cleaned.
2. If there is a lot of scale inside the faucet, you can soak it in clean water added with white vinegar, wait for a while, there will be floating objects on the surface of the clean water, indicating that the dirt has been cleaned, and the faucet can be restored.
3. If there is water leakage at the outlet pipe connected to the faucet, it is very likely that the internal O-ring is damaged, or something is stuck on the O-ring, and it needs to be repaired or replaced directly. Drop the O-ring.