What floor is the secondary water supply tank on? What floor is the secondary water supply tank on?

Generally speaking, municipal direct water supply is used for floors below 4-6, and fully automatic secondary water supply equipment is used for the above parts. However, some people directly use pressurization equipment from the first floor, depending on the local municipal pressure. According to the relevant regulations, the water supply pressure of the water supply company can only reach the sixth floor, which is far from meeting the needs of high-rise buildings.

Where municipal water pressure cannot be delivered, it must be pressurized twice, which is called secondary water supply. There are two standards for municipal water pressure. One is that the national regulations meet the service head of 28m (six floors); The other is 14m head (three floors) as stipulated in Document No.277 of the Ministry of Construction.

Due to different topography, the most unfavorable water pressure for water supply in local waterworks can't reach 28m head, so the head should not be less than 14m. General municipal water supply is responsible for supplying water to 1-6 floors, and secondary pressurized water supply starts from the 4th or 7th floors.