Can a fire pump be used for other building water needs?

Fire pumps are specifically designed to provide high-pressure water flow for fire protection systems, such as sprinklers and hydrants. While they are engineered to handle emergency situations, using a fire pump for other building water needs (like regular domestic or irrigation water supply) is not recommended for several reasons:

1. **Designed for Emergency Use**: Fire pumps are meant to operate in short bursts during emergencies. Continuous use could cause unnecessary wear and tear.
   
2. **High Flow Rates and Pressure**: Fire pumps typically deliver water at higher pressures than what is required for most domestic or irrigation systems, which could lead to damage to piping or fixtures.
   
3. **Code Compliance**: Fire pumps must adhere to strict regulations (NFPA standards, for instance) that govern their installation and operation for fire safety purposes. Diverting their use may violate safety codes.
   
4. **Interference with Fire Protection**: Using a fire pump for regular water needs could interfere with its availability and readiness during an actual fire emergency.

It's best to use separate systems for daily water needs and fire protection to ensure optimal performance and compliance.