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Master Valve Controll

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13 comments

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    Lukas Yanni

    Hi Jonathan, 

    Shutting it off early is an interesting suggestion; I will let our development team know. Thank you for your feedback!

    Regards

    Lukas

    RainMachine

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    Marcus Saegmueller

    Is there any update on this? Should be a rather simple thing to implement

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    Marcus Saegmueller

    Same here, I asked for this feature already long ago

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    Randy Vinyard

    I have a slightly different need in this area.  I have a hose hydrant in my system behind the master valve.  It is not controlled by any zone valve, so I need to be able to turn on the master valve by itself like any other zone.  Before anyone points out that it might not be code or anything, My system in on a water well and rural.  I use this hydrant to fill my pool.  Currently, I've got a jumper from the "hydrant zone" to the mv zone to fake it out but I don't really like it this way...

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    Mark Lebbin

     I agree you have to have pressure on a valve... but when the next zone fires up.. the pressure will be back to shut the valve off (if it didn't close in time.

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    Alfred Barnat

    I just filed a similar request, "Option to open a zone *after* closing master, for configurable duration", bit it looks like it's already essentially covered here.

    I have plenty of pressure even to close all the zones if they all start off open. (I've tried it.) What I want is the ability to drain the hose between my master and zone valves. This is not possible if the zones always close first or simultaneously (the master valve is a ball valve and slower to close), as it's not possible to use an automatic drain valve on the master line if it remains pressurized even after the master valve closes (because all the zones are also already closed). The only options are to add a slow intentional leak (could be a drip emitter, but still not a great solution as this could add up to quite a lot of wasted water) or just keep one of the zones open after the master closes. This should be very easy to do with a software update.

    Roy and Jeff, we're not asking for the zone or master delays to be removed. These are also important options. We're only asking for an additional option similar but opposite to the master delay, for those who need it. Your stories are good reminders of the different constraints people may be facing, but ultimately irrelevant to this request. Also note, if your valves require more than an extremely minimal flow to close, they may be in need of replacement. A properly operating valve should have no problem closing even with just a couple low flow drip emitters attached.

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    Matt Ahlgren

    I see Jeff Benjamin's point, however having the option for a negative master shutoff delay means everyone is happy.

    My problem is the same as Jonathan Lotz's and Alfred Barnat's in that I don't want constant pressure in the system after the master valve when everything's off (i.e. the zone valve shutting of before the master means the master does not close due to no pressure differential). Today I found a slow leak in my line between the master and the zone valves, slow enough that the master still couldn't close but enough to spray and soak the ground under my valve box. I fixed that, but if I could have the master shut off early it may never have happened (by not having mains pressure in the line 24/7).

    Given that the point of a master valve is to close off the supply to everything else, it makes sense no?

    Similar request has been raised here: https://support.rainmachine.com/hc/en-us/community/posts/360023001633-Master-Valve-Water-Hammer-Close-Master-Valve-Early-

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    AlexBzzBR (Edited )

    Hi,

    Agree with Alfred Barnat. We are not asking to remove the option to delay the shutoff the master after the valves. If your valve needs pressure to close, fine, keep using the functionality as is. I think most of the people ( like me ) want is to have a option to turn off the master before ( and also to turn on the master after) the other valves due to different scenarios where the pressure in the line is not needed.

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    Matt Ahlgren

    Absolutely. We don't want functionality taken away, we want it made more flexible. Everybody wins :)

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    art

    I also have this issue.  Seems like a no-brainer to me.  Why offer the ability to adjust the start time of the master valve at all if you don't allow positive and negative time adjustments?  I need to open my zone valve ...and THEN turn my pump on.  The way it is now, with no timing adjustment, the master valve comes on at the start of the program - then about 5 seconds later, the zone valve opens.  For that 5 seconds, my plumbing goes from about 20 psi to over 110psi.  The manifold shakes and the pressure gauge jumps way up waiting for the zone to open.  The app should allow me to delay the start of the pump.  On the backside of the program, the app should likewise allow me to turn the pump off and THEN shut the zone valve off.

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    Jeff Benjamin (Edited )

    Most, maybe all, sprinkler valves need water pressure to complete the opening or closure itself. Lacking this pressure on the valve may reduce the life of the valve and it may fail prematurely. The electric solenoid only controls a smaller valve internally, which then sends water pressure controlling a main valve for the system. This is one reason for using a delay between zones in programs - to make sure the system has enough water pressure to fully close the valve before opening the next. 

    This main valve would shut off pressure to the other zones valves, they would not then function properly.

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    Roy Lomicka

    I agree with Jeff Benjamin. Two big features of the RainMachine for me compared to my old controller are the ability to have water pressure to the zones while the zone valves are opening or closing, and to have a delay between zones. I feel that some of my zone valves have been opening more fully and closing more reliably since I installed the RainMachine with those features, and I think some older heads that had trouble popping up before are now popping up to full height more reliably due to having higher water pressure.

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    Roy Lomicka

    Mark, in my case, a few years ago, when my water pressure from the town was low and a valve did not close fully before the next zone began to open, there were then two zones receiving water, resulting in insufficient pressure to both complete the closure of the first zone and complete the opening of the second zone. Now my water pressure is higher, so even without the zone delay feature, I would probably be OK, but I still like the zone delay feature, which I think will help if I experience low water pressure again.

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