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Anonymous users2024-01-24Because there are no buildings with dual water supply systems in China, because the main valve and sub-valve do not have one-way check valves, under the action of negative pressure, the polluted water will flow back into the tap water system, as you said, the water from the toilet will flow back to the kitchen faucet; However, the amount of water that is generally returned will not be very large, so turn on the tap water and put more water in it, and the water will become clear. If you don't have any worries, you can avoid this by installing an anti-backflow device on the toilet tank.
Well, it's the water pressure. The house I rented was similar to yours, the water in the toilet was running and the kitchen was running in a big way.
Turn off the faucet, compensate for the losses downstairs, and learn a lesson.
The faucet can be removed, if it can't be twisted, you can use a cup of boiling water to scald it on the faucet, and then wear rubber gloves to twist it, which can generally be unscrewed. Do not remove it easily with a tool, it will scratch the plating layer.
Remove it and wrap it around the raw material belt a few times to make sure it's okay.
Inspect faucets or pipes for foreign objects that are blocked.