How to…

…calculate the flow rate for a water source

Question:

What is flow rate?

Answer:

Flow rate is the rate at which water flows from a water source. It is measured in Litres per minute.

Why is flow rate important?

Flow rate is important because it lets you work out how many sprinklers you can add to an irrigation system, and what size pipes you should use, before the system stops working.

Open text version of flash movie in a new window.
Skip the following flash interaction.
What tools do you need to measure flow rate?

To measure the flow rate of a water source you need the following tools:

Photo of a pressure gauge and gate valve assembly.

Photo of a 9L bucket.

Photo of a piece of 25mm clear plastic pipe.

Photo of a water source.

A pressure gauge (and gate valve) assembly

A 9L bucket (note: 9L is standard bucket size)

A piece of 25 mm clear plastic pipe

The water source you wish to test

| Back to How to… |

Top of page.