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It is also a sewer pipe, a drain and a sewer pipe for a basin.
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Is your house underfloor heating or radiators?
If they are all long to the top, then the thick is the sewer pipe, and the thin is the upper pipe. The public water pipes cannot be changed. If there are plugs, the thick one is the water pipe, and the thin one is the natural gas pipe.
It depends on what you are saying about the purpose of the processing. >>>More
This is not necessarily, it depends on whether it is a rainwater pipe or a sewage pipe, under normal circumstances, the rainwater pipe and the sewage pipe are separated.
It's interoperable. It is reasonable to consider the design of poor centralized drainage to prevent low-rise residents from backfilling.
The one on the right is a cold water pipe, if the water pipe is done according to the standard specifications for you, these two methods can be simply judged, one is to press the left hot and the right is cold, the other is according to the quality of the pipe, there is a red line is a hot water pipe, there is a blue line is a cold water pipe, if the hydraulic engineer does not divide the material and does not follow the specification, then you only have to try to open cold water.