Lawn Calc

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Watering

How long to run the sprinkler on each zone.

The sprinkler

Under Sprinkler, enter its Precipitation rate, printed in its manual or measured: set a few cans on the lawn, run it for 15 minutes and multiply the average depth by 4. Or enter its Flow rate: time how long it takes to fill a bucket of known size.

The minutes

Choose the Water per week, rain included and the Waterings per week. Each zone then shows its minutes per watering. Until a sprinkler is set, the app says Enter the sprinkler to get a watering time.

Know your lawn's size in a few minutes

Draw it on the satellite photo, then let the schedule tell you what to spread and when.

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