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Anonymous users2024-01-24It's the sound of a check valve when it is closed. The check valve only goes out and does not enter. You don't think there's a ghost, do you? Don't make jokes.
The exhaust vents are located in the kitchen and bathroom, mainly where exhaust gas is generated in these two places, which need to be discharged outside.
It is an equipotential box. The equipotential in the house or building is to connect the metal pipe components in the building with an equipotential (flat steel or copper wire, etc.), connect with the foundation grounding, and the house is electrified outside to ensure safety; >>>More
Do waterproofing needs to be done on the surface of the water, dig excellent permeability crystalline waterproofing, you can do it yourself on the cement surface with a super permeable waterproof guard (if there are cracks and potholes on the cement surface, fill the complete with metin porcelain glue and then do waterproofing). >>>More
The principle is that there will be no small holes, and carefully look at whether it is the hole made by installing small bathroom hardware (towel rack, cup holder, etc.).
Bathrooms are usually very humid and the air is very humid, and when encountering colder walls, it will condense into water droplets.