Fire pipes belong to the ancillary facilities of the building, and should be managed and maintained by the developer. If the developer has handed over the residential area to the property management company, the property management company should be responsible for the maintenance.

circulating cooling water refers to the way of exchanging heat through a heat exchanger or direct contact heat exchange, and then being cooled by a cooling tower and recycled to save water resources. The main difference between circulating cooling water and domestic water is that they contain different mineral ions and different water temperatures, which can meet the water quality requirements of fire fighting water. Therefore, enterprises with circulating cooling devices can consider using circulating cooling water as fire fighting water.

water source for fire fighting:

in the practical sense of fire fighting, any water body that can be used for fire fighting can be used as water source for fire fighting. The Code for Fire Protection Design of Buildings stipulates: "Fire water can be supplied by water supply network, natural water source or fire pool."

according to the water quality standard for urban miscellaneous water, the water quality meets the requirements of PH 6.~9., chroma ≤3, no unpleasant smell, turbidity ≤1, total dissolved solids ≤1 5, BOD5≤15, ammonia nitrogen ≤1, anionic surfactant ≤1, dissolved oxygen ≥1 and total residual nitrogen ≥ 1 after contact for 3 minutes.

reclaimed water is reclaimed water, which means that after proper treatment, sewage can reach a certain water quality index, meet a certain use requirement and can be used beneficially. Reclaimed water is mainly divided into urban area reclaimed water reuse and community reclaimed water reuse. Water treatment technology can treat sewage to meet the water quality standards required for fire fighting. In urban planning and community construction, reclaimed water can be used as fire fighting water.