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Thread: Ro reservoir programming

  1. #1
    New User
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    Ro reservoir programming

    So I have a brute can with two float switches high and low. With the container empty both switches are closed.

    I need a code to turn on ro_selonoid when rolow switch is closed and turn off when rohigh is open. I've seen other posts on this yet non seem to be helping me here.

    Thanks for the help.


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  2. #2
    Frequent Visitor
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    RO
    Fallback OFF
    If SW_Low OPEN Then ON
    If SW_Hi CLOSED Then OFF

    This will turn on the outlet when the water falls below Low and keep it on until the water reaches SW_Hi. As the water level falls from Hi to Low the outlet remains off.

    The possible problem here is if something happens to SW_Hi so it does not close. The outlet will never shut off and it wil continue to dump water.

    To stop this add 2 virtual outlets

    vReset
    Set OFF

    vLatch
    If Outlet RO = ON Then ON
    Defer 010:00 Then ON
    If Outlet Vreset = ON Then OFF

    Add to the end of the RO outlet

    If Outlet vLatch = ON Then OFF

    Set the time in the defer to be long enough to fill your RO container from Low to Hi. If the pump is on that long vLatch comes on and the RO outlet turns off. After you fix the problem turn outlet vReset on for a few seconds and vLatch will turn off and you can fill again.

  3. #3
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    Ok...mostly working except if I only use some and not all of the water in the reservoir....It kicks on again...does not wait ill it gets back down to low level again...

  4. #4
    Master Control Freak RussM's Avatar
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    Quote Originally Posted by Jbaker2290 View Post
    Ok...mostly working except if I only use some and not all of the water in the reservoir....It kicks on again...does not wait ill it gets back down to low level again...
    Make sure you do not have a Set Off in the outlet program.

    If that's not it, post all applicable programming you have in place.
    Please do not send me PMs with technical questions or requesting assistance - use the forums for Apex help. PM me ONLY if the matter is of a private or personal nature. Thanks.

  5. #5
    Just another guy
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    What solenoid are you using? I am thinking of adding some solenoids but I haven't taken the leap yet. Have you had good luck?

  6. #6
    Hamburg Mattenfilter
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    I thought it's wise to have an open float stop a process not start it?

  7. #7
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    Floats fail both opening and closing. I test all of mine as part of my maintenance schedule and try to keep as many as I can out of the water. I also try to limit the damage a sticking float can do. For example limit the time the solenoid is open to limit the damage if the hi float fails.

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