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How to measure a garden tap flow rate

Use a measuring jug or bucket that will contain up to 2 litres of water or more. 

You will need to have markings in litres.

If the jug is graduated in milliliters, you will need to divide by 1000 to get litres.

Run the tap, fully open, for 6 seconds – then quickly close the tap.  Use the timer on your mobile phone for an easy and accurate timing method.

Note the amount of water in jug, in litres.

Multiply the litres figure x 10

This will give you your flow rate in litres per minute.

A normal garden tap flow rate will be at least 10 litres per minute. Anywhere between 10 and 15 litres per minute is acceptable but ideally should be above 15 litres per minute for the best sprinkler performance.

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