What if the building leaks?

It is basically shared by all households, and the cost is calculated like this.

A galvanized pipe, in charge of each household around 480 yuan, including three meters in charge, tee, demolition, etc. If all indoor pipes are exposed, 800 yuan is probably needed.

Second, the plastic galvanized pipe is in charge of every household in 580 yuan, and the indoor pipe is almost the same as that in 900 yuan.