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Thread: Help with labeling plumbing?

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    Help with labeling plumbing?

    Hoping someone can help me with this (see pic)...trying to find out what to label each valve.

    The ones I do know are the two that are one right above the other (pool/spa suction, pool/spa return). One thing I'm confused on though is that even when they are both set to spa off, i still have water coming from some of the spa jets.

    The other valve I'm guessing is skimmer vs main drain, but I'm having some issues with it...mainly unsure what I'm turning off when the off valve is pointing up (i.e. not pointing at any pipe) or if I have it halfway between up and to the right. If I turn it to off down, the skimmer turns off. If I turn it to off right, I lose most suction from the pool vac.

    Thoughts?

    ~ 10k gallons IG plaster, pentair clean & clear plus cartridge filter, intellichlor IC40 SWG, pentair intelliflo variable speed ultra energy efficient pump, mastertemp 400 heater, spa w/ spillover, pentair kreepy krawly vacuum
    pool built: nov 2014

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    JasonLion's Avatar
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    Re: Help with labeling plumbing?

    The red handled valve on the upper left is the spa makeup water valve. When open, as in the photo, it sends water to the spa all of the time regardless of the main pool/spa return valve.

    The valve lower down near the pool/spa suction valve could be a couple of things, but most likely is main drain vs skimmer(s). If you don't have a main drain it might instead be one skimmer vs another skimmer.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Help with labeling plumbing?

    Quote Originally Posted by JasonLion View Post
    The red handled valve on the upper left is the spa makeup water valve. When open, as in the photo, it sends water to the spa all of the time regardless of the main pool/spa return valve.

    The valve lower down near the pool/spa suction valve could be a couple of things, but most likely is main drain vs skimmer(s). If you don't have a main drain it might instead be one skimmer vs another skimmer.
    thanks - that answers the first question (why i have water from the spa jets even when spa return is off)

    i do have a main drain...but i'm still unsure what i'm turning off when i have the valve in various positions. i would imagine that the middle pipe is the skimmer, since if i turn the valve to be facing down-off i lose suction from the skimmer. i'm not sure though what i'd be turning off if i have it up-off, or why i seem to lose suction for the pool vac if i turn it to the right-off....

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    Mod Squad jblizzle's Avatar
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    Re: Help with labeling plumbing?

    Well, if you have a dedicated suction line, then that is what the right pipe is for. If the OFF on the valve is down, then you have all suction from the skimmer cleaner. If the OFF on the valve is to the right, then the cleaner would be turned off with all suction from the skimmer.

    Sounds like your floor drain is likely plumbed to the bottom of the skimmer and you may should have a float diverter under the skimmer basket to force suction from the floor if so desired.
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    Re: Help with labeling plumbing?

    Quote Originally Posted by jblizzle View Post
    Well, if you have a dedicated suction line, then that is what the right pipe is for. If the OFF on the valve is down, then you have all suction from the skimmer. If the OFF on the valve is to the right, then the cleaner would be turned off.

    Sounds like your floor drain is likely plumbed to the bottom of the skimmer and you may should have a float diverter under the skimmer basket to force suction from the floor if so desired.
    you mean if i have the off facing down, skimmer is off (and all suction to vac), right?

    does that mean that when i turn it so that off faces up (or facing no pipes), they're both on?

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    JasonLion's Avatar
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    Re: Help with labeling plumbing?

    Yep, handle down, OFF up, means both on.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Mod Squad jblizzle's Avatar
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    Re: Help with labeling plumbing?

    Sorry, yes, with OFF down the skimmer is off and all from the vac.

    If OFF is up, then they are both open, same with in your picture, they are both open (although each is partially restricted)
    Jason, TFP Moderator
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    Re: Help with labeling plumbing?

    cool, thanks! is there any disadvantage to leaving it with both open? i've never been able to figure out definitively which is the best way to have it set...

    or perhaps a better question - is it better to have them both open as i do in the picture (partially restricted), or just have them both open all the way?

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    Mod Squad jblizzle's Avatar
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    Re: Help with labeling plumbing?

    If you are running the vac, then you would would adjust the valve to close off the skimmer enough so that you have the right amount of flow through the cleaner. If you are not running the vac, then I would close that line off to have better skimming.
    Jason, TFP Moderator
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