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Available Water Increased w/o Rain

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3 comments

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    Nicholas

    If no rain was forecasted the only reason Available Water can increase is a "Forecast Correction". This means that the EvapoTranspiration for a day was forecasted to be higher (when program started) than it actually was using the day latest weather information. So the algorithm must correct this and the only way to reduce future irrigation, because of extra previous irrigation, is to "put back" some available water in soil. This might seem counter intuitive but it's a more uniform algorithm.

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    Aaron Long

    Thank you Nicholas.  The rotors water 1:45 minutes per zone...that seems like a lot (every 3 days).  If I were to back it off to 60 minutes with a custom setting rather than the suggested would it just water days to make up?  Or is the time of watering per station not connected to the available water calculation?

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    Nicholas

    1:45 minutes meaning 1 hour and 45 minutes ? Now it depends on the type of rotors/heads, some are very slow with a low precipitation rate, others (newer ones) have much better precipitation rate (double than our default setting). The precipitation rate can be changed by using a custom sprinkler head and increasing precipitation rate and efficiency.

    The available water is not connected to irrigation, we just replenish to reach the plant optimal level, the available water is above that. That means no matter how much you irrigate we don't add to available water. Doing that would lead to other potential issues.

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