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Thread: Praher valve question

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    Praher valve question

    Ok, so I am trying to drain a community spa. I found the line to the sewer and the valve to open to drain it, but when I open the valve (a Praher) Nothing happens. Is there something special about making these work? Here is a picture of the type of valve. Does it indicate a broken valve? They have this special "pin" feature for repairing the ball valve pin removal. What the heck is that about? [attachment=2:33039eho]truesingpin.jpg[/attachment:33039eho]

    As well the dang pump controller monitors mm of Hg on the vacuum side, so when I shut off the skimmer and switch to the drains only it freaks out because of the pressure increase from 3.5 to 5.8. How do I keep the pump running and stop the controller from interferring. I am sure it is a safety feature for all the new anti entrapment features.
    [attachment=1:33039eho]IMG_5268_a.jpg[/attachment:33039eho] [attachment=0:33039eho]IMG_5269_a.jpg[/attachment:33039eho]
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    reebok's Avatar
    Join Date
    Apr 2009
    Lakeland, FL

    Re: Praher valve question

    have you tried pushing the yellow button that says maint/clean? it says blockages aren't detected when in that mode.
    16x32 21,000 gallon in-ground exposed aggregate, 1.5hp pump, 120 sqft catridge filter, birdcage, solar panels, aquavac tigershark qc robot.

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    Re: Praher valve question

    Yes, it shuts off the pump.

    Not sure what the heck it is supposed to do in maintanence mode.

    Ok, so I found the manual online and RTFM. It needs to be in the off mode before going into maintanence, so that question is answered.

    Now for the valve...

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    Join Date
    Mar 2007
    Coastalish 'down easter'

    Re: Praher valve question

    The Stingl switch is a safety device and to vacuum or run solely off the drains, you need to be in the 'maintenance mode' - this will only run the pump for 30 minutes.

    Have you tried unscrewing the union on the valve? With most of these type valves, having the union fully tight is the only way to keep them from dripping - however, if the union is too tight, you can't turn the ball in the valve.
    Luv& Luk

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

  5. Back To Top    #5

    Re: Praher valve question

    Thanks, The handle does turn, it just doesn't seem to open the passage way.

    Is the ball valve stuck even if the handle can be fully turned?

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    spishex's Avatar
    Join Date
    Oct 2008
    Hillsborough, NC

    Re: Praher valve question

    Those handles crack all the time. You may not actually be turning the stem of the valve. Remove the handle and check the position of the stem first, then turn, then remove again to see if it actually moved.

    The retaining pins are used to hold the ball in place when the union is opened. You'd only ever need to mess with those if you were replacing the gaskets inside the valve itself.

  7. Back To Top    #7

    Re: Praher valve question

    Yep, the handle was stripped, so while it turned the valve was NOT turning. Got out the lockgrips and turned it. Amazing how it works when done with real tools.

    Thanks all for the information.

    Got the controller to run in Maint mode, albeit with a continous alarm reminding you how much time of 1/2 hour you have left.

    I got the spa drained and refilled.

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