What is the national standard of high-rise residential water pressure? For example, how much can the water pressure at the entrance of 14 floor not be lower?

The state does not stipulate the water pressure of households. No less than 0.30MPa is the water pressure of urban water supply network. The elevation of each residential building varies greatly, and the equipment lift required for each faucet outlet of high-rise residential building depends on the water supply design, so there is a secondary water supply design, which pumps water from the pool to the roof water tank; Multi-storey residential areas should be built with pools and water towers; No negative pressure device can be used in a separate house.