Ability to turn Master Valve off before Zone Valve

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Dane Walter

September 29, 2019 20:32

The current implementation only allows for the master valve to be turned off so many seconds AFTER the program has ended. I have some areas that have automatic drains after the master valve and need a pressure drop to be able to open.

I would like the ability to be able to close the master valve so many seconds BEFORE the zone valve is closed to allow a pressure drop to occur between the master valve and sprinkler heads.

This could be implemented as simply as allowing for the option of negative time (say up to -60sec) before the cycle ends to have the master valve close.

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  Matt Ahlgren October 14, 2019 11:14

  FYI to RainMachine: see same or similar requests:

  https://support.rainmachine.com/hc/en-us/community/posts/220715808-Master-Valve-Controll

  https://support.rainmachine.com/hc/en-us/community/posts/360023001633-Master-Valve-Water-Hammer-Close-Master-Valve-Early-

  https://support.rainmachine.com/hc/en-us/community/posts/115007116467-Option-to-open-a-zone-after-closing-master-for-configurable-duration

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  DennisT November 27, 2019 18:44 (Edited November 27, 2019 18:44)

  I would use this, though some thought would need to be given to other zones in the schedule.  EG if zone 1 finishes do not close the main beforehand if another zone starts after zone 1 finishes, or perhaps just scheduling the main separately?

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  lanbrown March 04, 2020 02:02

  It seems that the easiest method would be to tie it to the schedule.  So when the schedule is going to start, it opens the master vale X amount of time before the schedule starts (the RainMachine knows when the schedule is going to start and how long it will run) and then starts watering when the schedule time starts.  When the schedule is set to end, it closes the main valve when the schedule ends and then closes the last zone being used X amount of time after the schedule ended.  This would mean that the RainMachine doesn't need to worry about the other zones.

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  Matt Ahlgren November 18, 2020 11:59

  Any update on this Rain Machine people? This request has been raised many times the first one being at least 4 years ago. This seems to be the only thread with a feature status (Gathering Feedback), but it seems there's no progress?

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  Eric Quarnstrom November 30, 2022 21:23

  I would like this feature as well. I'm using the Master line to turn on the relay for a pump and would like to turn off the pump a minute or two before shutting downstream valves to reduce the risk of blowing a line from too much pressure. This is for an agricultural irrigation system, BTW so higher pressures than normal residential.

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