How many zones are needed if the water supply is 10 GPM and each zone requires 5 GPM?

To determine the number of zones needed based on the water supply and the requirement per zone, you must divide the total water supply by the amount required for each zone. In this case, the water supply is 10 gallons per minute (GPM) and each zone requires 5 GPM.

By performing the calculation (10 GPM supply ÷ 5 GPM per zone), you find that you can effectively operate 2 zones. This means that with the available supply of 10 GPM, you can fully support 2 separate zones, ensuring each gets the necessary flow of 5 GPM.

This understanding is crucial, as it ensures that each zone receives adequate water without stressing the supply system, maximizing efficiency and promoting healthy plant growth.