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There is a silent booster pump. In addition, (your pump is really stumbling).
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It's very simple, buy a silent one, I have a German product at home, it's so quiet, I don't know if it's on or off just listening to the sound.
A floor plan needs to be drawn. According to what you said, the south-facing window is facing a road, and if the road is facing the window, your family's feng shui problem is quite big. The feng shui network is simple to consult, and the detailed layout costs money. Think.
This is not good, so that you write down the handles of the two doors with a red rope, and then use a knife to give one and two sections, and then the two sections of red rope are pulled in the opposite direction, so that it is broken.
You're talking about a situation where the bottom of your sink is clogged, so the upstairs drain will regurgitate from where your house's drain pipe is blocked to the sink.
Is there a connecting vent or something? Otherwise, it is generally cold and difficult to rise through the water barrier.
When you enter the door, you see that the dining table is not very good, so it is better to make a porch.