To make sure your irrigation system runs smoothly, we need to check how much water your outdoor tap can deliver.

Here’s how:

  1. Grab a 10-litre bucket.

  2. Turn your outdoor tap on fully.

  3. Time how long it takes to fill the bucket to the 10-litre mark.

  4. Use the chart below to find your flow rate and how many beds you can water at once.


🧮 Flow Rate Chart

Time to Fill (Seconds) Flow Rate (L/min) Flow Score Beds You Can Water at Once
20 30 A Up to 6 beds
30 20 B Up to 4 beds
40 15 C Up to 3 beds
50 12 D 2 beds
60+ ≤10 E 1 bed only

If your flow score is A–C, you can water multiple beds at the same time.
If it’s D or E, we recommend a Twin Zone Controller to alternate watering between beds.