Suggested daily watering time

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RobbyT

May 09, 2017 20:17

Hi there, I have a question about the suggested daily watering time. I just set up zone 1 and it says 8:39 min is the suggested watering time. I ask myself why the suggested time does not change when I change values in area, totel flow or soil type.

Just one example: The suggested watering time for an area of 100m² and a flow of 1m³/h cannot be the same as for an area of 10m² and a flow of 4m³/h. In both examples the suggested time is 8:39min. Changing soil type does not take any effect as well. That makes no sense in my opinion. Or am I wrong?

Best regards!

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  RainMachine Nicholas May 11, 2017 15:16

  Hi,

  The area only matters for computing used water volume, if the GPM value is not filled in. The calculation uses the zone "Precipitation Rate" which is defined by the sprinkler head used. The provided defaults are usually safe but most users either use a custom value filled from datasheet of the sprinkler heads or perform a catch cup test to find the actual "precipitation rate"

  So to water a zone, RainMachine only opens 1 valve, it doesn't matter if the zone is 100m or 10m as it's considered that the entire zone is covered by sprinkler heads with the respective precipitation rate.

  Also soil type only matters for automatic cycles and field capacity (how much water it can hold). To see changes in the suggested watering time, one would need to change either 

  vegetation type, sprinkler head type or exposure.

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