What is the maximum length allowed for using the simplified method of water sizing?

The maximum length allowed for using the simplified method of water sizing is 90 meters. This method is employed to streamline the calculation of water supply systems, especially for residential and light commercial applications.

The 90-meter limit is established to ensure that the friction loss in the piping does not exceed acceptable levels, which could impact the flow rate and pressure delivery at the fixtures. Keeping within this limit allows for maintaining sufficient water pressure throughout the system while simplifying the design process without getting into more complex calculations for longer runs, which could introduce significant variables due to head loss and pressure drop.

Understanding these limitations is crucial for proper plumbing design, as exceeding this distance might require more detailed hydraulic calculations or alternative sizing methods to ensure that the system functions efficiently.