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Thread: Filter pressure gauge install question

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    CajunGuy's Avatar
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    Filter pressure gauge install question

    I just replaced my filter pressure gauge (back mount gauge on top of filter) and wanted to know if it's normal or ok if the gauge is not perfectly perpendicular to the ground. Mine needed about 1/5th more of a turn to line it up perfectly straight, but it was already hand tight (and a quarter turn), so I didn't want to tighten it anymore and strip something. It seems to be working fine. I've attached a picture of what the gauge looks like installed.
    15k Gallon In Ground Saltwater Gunite Pool and Spa w/ Overflow
    Dolphin S200 Pool Cleaner
    Main Filter Pump - 1.5HP Pentair Whisperflo connected to Triton II Sand Filter
    Spa Pump - 2HP Pentair Whisperflo w/ 2HP Polaris Spa Air Blower
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    Mod Squad Jimrahbe's Avatar
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    Re: Filter pressure gauge install question

    Cajan,

    I can't see where it would matter, as long as you can read it..

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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    CajunGuy's Avatar
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    Re: Filter pressure gauge install question

    Quote Originally Posted by Jimrahbe View Post
    Cajan,

    I can't see where it would matter, as long as you can read it..

    Jim R.
    Probably just my OCD kickin lol. I've never replaced one before, that's the only reason I was asking. Just wanted to make sure I installed it correctly.
    15k Gallon In Ground Saltwater Gunite Pool and Spa w/ Overflow
    Dolphin S200 Pool Cleaner
    Main Filter Pump - 1.5HP Pentair Whisperflo connected to Triton II Sand Filter
    Spa Pump - 2HP Pentair Whisperflo w/ 2HP Polaris Spa Air Blower
    Resilience PSC3 SWCG

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    CJadamec's Avatar
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    Re: Filter pressure gauge install question

    The gauge won't care one bit about being out of level. You did the correct thing by not overtightening it.
    Chuck-
    15x30 AG, Pentair Superflo VS, 19" sand filter, TF-100 test kit
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    Re: Filter pressure gauge install question

    Looks perfect to me
    24ft x 52in AGP 18000 gal
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    Re: Filter pressure gauge install question

    What do the "start" and "clean filter" arrows mean? Seems like that's labeled wrong.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad Jimrahbe's Avatar
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    Re: Filter pressure gauge install question

    Quote Originally Posted by duraleigh View Post
    What do the "start" and "clean filter" arrows mean? Seems like that's labeled wrong.
    I believe that it means "It is time to clean the filter".. Not that at that pressure the filter is clean.

    Although I like your idea better...

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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    CajunGuy's Avatar
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    Re: Filter pressure gauge install question

    The "Start" is your normal filter pressure when the filter has just been backwashed and all baskets emptied out. The "Clean Filter" is when your pressure has climbed (dirty filter that needs backwashing, baskets with debris that need to be emptied, etc) and it is time to backwash the filter and clean the baskets. It's just a visual guide. You can actually rotate the dial and set it the "Start" arrow on whatever you're clean filter pressure is because people's pools run at different pressures.
    15k Gallon In Ground Saltwater Gunite Pool and Spa w/ Overflow
    Dolphin S200 Pool Cleaner
    Main Filter Pump - 1.5HP Pentair Whisperflo connected to Triton II Sand Filter
    Spa Pump - 2HP Pentair Whisperflo w/ 2HP Polaris Spa Air Blower
    Resilience PSC3 SWCG

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    Mod Squad woodyp's Avatar
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    Re: Filter pressure gauge install question

    I wouldn't go by those arrows anyhow......that looks like the industry standard of a 10 lb. increase in pressure to me. 25% rise over clean is our gauge.
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    Re: Filter pressure gauge install question

    I understand the labeling now. If they are adjustable, you should reset your "clean filter" arrow to about 14-15 lbs......a 25% increase
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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