Which water supply is likely to be used for a maximum of six sprinkler heads?

The domestic water supply is specifically designed to provide water for everyday use in residential, commercial, and certain industrial applications, including fire protection features such as sprinkler systems. In the context of sprinkler systems, the domestic water supply is typically configured to handle the demands of a limited number of sprinkler heads, like a maximum of six, depending on the system's design parameters.

Domestic water supplies are usually pressurized to meet the required flow rates and pressure for effective operation of small-scale sprinkler systems, which is why they are commonly used for residential installations. The flow rates and pressure associated with the domestic supply are generally sufficient to ensure that a few sprinkler heads can operate effectively during a fire event without overwhelming the system.

On the other hand, an industrial water supply often caters to larger systems that require significantly more volume and pressure to manage extensive fire protection needs across larger areas. Portable water supplies are typically temporary and may not provide the consistent pressure and volume needed for reliable sprinkler operation. Fire suppression water supply refers to systems dedicated to fire fighting, which usually exceed the needs of just six sprinkler heads and are designed for more extensive suppression systems. Therefore, the domestic water supply is the most appropriate choice for servicing a limited number of sprinkler heads effectively.