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Anonymous users2024-01-24Corrugated air duct, made of aluminum, plastic material, the size is generally 15cm, and the exhaust fan can be connected without corrugation.
The bathroom has two riser ventilators, which do not produce water droplets. >>>More
There are many of this design in China, there is no ventilation pipe of the sewage pipe will form a very serious positive and negative pressure problem, floor drain or hand basin back smell, slow drainage, and even low-rise residents of the toilet or floor drain backwater, it is recommended that residents install the British green future drainage suction valve, which can solve the problems of floor drain, hand basin back smell, slow drainage, etc.
Your question is inherently wrong. Extended roof ventilation means that in the absence of a special ventilation pipe, the drainage riser is directly drawn from the roof to achieve the purpose of aeration. Not to mention the special ventilation riser, if you don't stretch the top, where does the ventilation come from? Ventilation is not possible in the room. >>>More
If, as you said, your water meter has been rotating very slowly, which indicates that your water pipes are leaking, you can find a plumber who is engaged in renovation and ask him to test your water pipes with a pressure test pump. If it is thought that there is no leakage in your home's water pipes, then there is a problem with waterproofing. However, if it is only a problem with the waterproof layer, it should not penetrate into the 3 or 4 floors, but it does not explain the problem that the water meter is still "rotating very slowly" without using water, and you have to let a professional plumber carefully check it.
The bungalow is on the side or out of the back, if it is a floor, it is not you who you want to be, unless you make an exterior wall.