Well Pump Cycles every 30 seconds

Discussion in 'Irrigation' started by level4designs, Jul 7, 2014.

  1. bcg

    bcg LawnSite Bronze Member
    from Tx
    Posts: 1,835

    Yeah, they create some back pressure on the pump that will vent out the release valve. It will dump a fair amount of water so you want to put it somewhere that can handle it or you'll end up with a lot of standing water. It can be a pain to find a good spot to drain it to but it is less of a pain than replacing a well pump.

    The CSV is about $100 +/-, depending on the size and pressure. If that well pump is cycling from 45PSI - 75PSI, I'd get a 60PSI CSV and nozzle my heads to take full advantage of that.
     
  2. 1idejim

    1idejim LawnSite Fanatic
    Posts: 9,313

    This is what I use
    [​IMG]
    I'm sure the cyclestops that Bernie is speaking of are actually meant to be installed inside of the well casing. The valves I use do not leak or bypass any water whatsoever.

    The op has a problem that's being overlooked guys, rather than suggest quick fixes, he should do or have done a pump down test to tell him his supply, depletion and recharge rates.

    If the tank and pressure switch are ok, the only thing left is the pump and conveyance piping. If those are good the mechanical troubles become hydraulic, supply, demand.
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  3. bcg

    bcg LawnSite Bronze Member
    from Tx
    Posts: 1,835

    Jim, the CSV isn't what leaks, it's the pressure relief on the well. They do have a version that should be installed in the casing, I use one that is installed outside the casing but it has to be the first thing on the line, before the pressure tank, pressure switch, etc.

    I put CSV's on all well systems, even when they're designed for the pump flow. It's cheap insurance.
     
  4. 1idejim

    1idejim LawnSite Fanatic
    Posts: 9,313

    The round plastic ones leaks a bit of water and that's the reason they're meant to be installed inside the casing.

    I've installed a (few) of the ones I pictured and a (few) of the psidekicks. Other than the (few) I've installed I don't see a lot of them. I recommended one be installed last Thursday on a well when I was doing a leak detection/repair at this pretty lady's house.

    I've never seen any of the brass or bronze valves cause pressure pop offs and I've installed a (few) of them.
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  5. greenmonster304

    greenmonster304 LawnSite Gold Member
    Posts: 3,074


    Why do you have the relief plumed in between the csv and the pump? Pretty sure the manufacturer doesn't recommend that. This is from their site

    [​IMG]
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  6. bcg

    bcg LawnSite Bronze Member
    from Tx
    Posts: 1,835

    I don't, the well installers do. The relief is on top of the down pipe where that galvanized thread cap is in your picture. I'm not going to move it and risk burning up a pump, I figure the well guys put it there for a reason and if it's draining water, it's probably supposed to.
     
  7. 1idejim

    1idejim LawnSite Fanatic
    Posts: 9,313

    Think about it for a minute.

    The relief valve is installed first, before the cycle stop valve and you posted earlier that
    So aren't you defeating the purpose of the valve?

    I mean, I know it's working for you but it's prolly not working at it's best performance level.
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  8. bcg

    bcg LawnSite Bronze Member
    from Tx
    Posts: 1,835

    Jim, I've left them because I believe the CSV is building back pressure on the pump by preventing the tank from getting above the pressure switch cutout point. Those relief valves are set pretty high and I'm concerned that if I remove or plug one, I'll come close to deadheading the pump and cause big problems. If the guy responsible for the well says it's OK to remove it or put it further down the line, I'll do it but I want him to be responsible for any damage, not me. They would be easy to plug or remove, I'm just not willing to risk it. I'd rather deal with some water than the fallout of a dead pump, especially since all of my well systems are on residential properties where the well is also supplying the house water.

    I think of it like the air inlet valve for a PVB, if it's venting water, there's probably a good reason for it and you probably want it to be able to do so.
     
  9. 1idejim

    1idejim LawnSite Fanatic
    Posts: 9,313

    I see your concerns Bernie and you know darn well what I think of your professionalism and intelliect.

    I would contact csv and talk to Cary about the issue and the concerns you have though, something just doesn't sound right.
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  10. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,323

    The relief would provide some protection for supply lines you fear to over-pressurize.
     

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