Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 14 of 14

Thread: Pressure on Gauge never changes

  1. Back To Top    #1

    Join Date
    Jun 2011
    Location
    New Jersey
    Posts
    146

    Pressure on Gauge never changes

    So when I moved in the pressure gauge was already pretty old but I never thought it maybe bad, after couple of season of it never changing the values really I decided to replace it. My pool was always pretty clear and not much stuff gets into the baskets. I bought a brand new zodiac pressure gauge this year and I noticed the same thing, the pressure never changes on this thing, really It might have dropped very slightly. I did have a small algae outbreak when I shut off my chlorinator production for a few days by mistake but it cleared up very quickly when I shocked. Even with that I thought it would raise the pressure at least a bit. I think the gauge run for at least 2 months without any pressure change. Can it be another bad one? or something with the filter?
    Free Form Gunite Saltwater Pool, 29,000 Gallons, Jandy DEL60 Filter, Jandy AquaPure 1400 Chlorinator, Polaris 380 Cleaner, Attached HotTub.

  2. Back To Top    #2
    TFP Guide
    Mr Bruce's Avatar
    Join Date
    Mar 2014
    Location
    Greenville, SC
    Posts
    1,373

    Re: Pressure on Gauge never changes

    Does the pressure go to 0 when it's off? Is the pressure slightly less on circulate than filter? Is/are the return/s strong?
    35K gallon Krystle Krete (Plaster) - Sand Filter - TF100
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

  3. Back To Top    #3

    Join Date
    Jun 2011
    Location
    New Jersey
    Posts
    146

    Re: Pressure on Gauge never changes

    Quote Originally Posted by Mr Bruce View Post
    Does the pressure go to 0 when it's off? Is the pressure slightly less on circulate than filter? Is/are the return/s strong?
    Yes it does go to 0 when off, as far as the returns I am not really sure what strong means, they seem ok to me but I couldn't really tell you if they were as strong when I moved in 5 years ago or not, I do not have a good memory for stuff like that :/.
    Free Form Gunite Saltwater Pool, 29,000 Gallons, Jandy DEL60 Filter, Jandy AquaPure 1400 Chlorinator, Polaris 380 Cleaner, Attached HotTub.

  4. Back To Top    #4

    In the Industry

    Join Date
    Jul 2015
    Location
    Gilbert,AZ.
    Posts
    123

    Re: Pressure on Gauge never changes

    What is the pressure reading when the pump is on?
    Do you backwash it ever, the pressure may be to high on your filter,and when you backwash may not lower the pressure due to a clogged filter,

  5. Back To Top    #5

    Join Date
    Jun 2011
    Location
    New Jersey
    Posts
    146

    Re: Pressure on Gauge never changes

    Quote Originally Posted by pool&spatech View Post
    What is the pressure reading when the pump is on?
    Do you backwash it ever, the pressure may be to high on your filter,and when you backwash may not lower the pressure due to a clogged filter,
    The pressure reads about 16, I did backwash it 3 times I think when opening the pool while I shock for the overnight test. I passed the overnight test within 24 hours pretty much every time I opened the pool since I moved in and water remains clear all season (with exception I mentioned earlier). I bought the gauge after this period but I did backwash when I replaced it as I had too much water plus I wanted to be sure my filter is clean when I install the pressure gauge. I have not backwashed since as filter never moved and water is crystal clean.
    Free Form Gunite Saltwater Pool, 29,000 Gallons, Jandy DEL60 Filter, Jandy AquaPure 1400 Chlorinator, Polaris 380 Cleaner, Attached HotTub.

  6. Back To Top    #6
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,702

    Re: Pressure on Gauge never changes

    Ok, this may be a stupid question, but is there DE in the filter?
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  7. Back To Top    #7

    Join Date
    Jun 2011
    Location
    New Jersey
    Posts
    146

    Re: Pressure on Gauge never changes

    Yes there is DE in the filter
    Free Form Gunite Saltwater Pool, 29,000 Gallons, Jandy DEL60 Filter, Jandy AquaPure 1400 Chlorinator, Polaris 380 Cleaner, Attached HotTub.

  8. Back To Top    #8
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,702

    Re: Pressure on Gauge never changes

    Just checking because these symptoms sound like low to no DE
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  9. Back To Top    #9

    Join Date
    Jun 2011
    Location
    New Jersey
    Posts
    146

    Re: Pressure on Gauge never changes

    well I guess the DE could have somehow escaped the filter magically but I definitely put it in there and there is always a ton after closing.
    Free Form Gunite Saltwater Pool, 29,000 Gallons, Jandy DEL60 Filter, Jandy AquaPure 1400 Chlorinator, Polaris 380 Cleaner, Attached HotTub.

  10. Back To Top    #10

    Join Date
    Jun 2011
    Location
    New Jersey
    Posts
    146

    Re: Pressure on Gauge never changes

    no other thoughts, suggestions? is there a way to test this thing? I don't want to return and re buy for no reason.
    Free Form Gunite Saltwater Pool, 29,000 Gallons, Jandy DEL60 Filter, Jandy AquaPure 1400 Chlorinator, Polaris 380 Cleaner, Attached HotTub.

  11. Back To Top    #11

    TFP Guide
    domct203's Avatar
    Join Date
    Jun 2015
    Location
    CT
    Posts
    1,383

    Re: Pressure on Gauge never changes

    While I don't have any suggestions to your pressure issue, if you decide to replace the gauge again these are much better options at a third of the price you paid:
    TFTestkits.net

    TFTestkits.net
    Dom - TFP Guide
    Intex 18' X 48" Ultra Frame AGP 6700 gallons | Hayward Pro Series 21" Sandfilter | Hayward 1.5HP Power Flo Matrix pump | Hayward Thru-wall Skimmer | Wanda the Whale | 72 sq ft of Sungrabber Solar Panels | Taylor K2006 Test Kit, Sample Sizer & Speed Stir | Click Here To Become a TFP Supporter!

  12. Back To Top    #12

    Join Date
    Sep 2013
    Location
    Connecticut
    Posts
    728

    Re: Pressure on Gauge never changes

    I had a house water system pressure gauge, years ago, that would periodically read inaccurately. The reason being that it was mounted on a little elbow which had narrow ID and would periodically get clogged with sediment. Not sure if this might have any relevance in your situation, but consider whether the water has a nice clear path to the gauge.
    18' x 48" ring top pool (Summer Escapes); 5500 gallons; set up June - October, stored during winter; Intex 2500 gph pump (B size cartridge filter) Hayward 21" sand filter + 1.5 hp single speed Powerflo Matrix pump (upgrade October 2016) *** K-2006 test kit, refills from tftestkits

  13. Back To Top    #13

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,519

    Re: Pressure on Gauge never changes

    RafaelS,

    Easy to see if your gauge is working. Simply restrict (slowly) the flow to the pump by slightly shutting down the valves from the pool. Your pressure will drop.

    Reopen those valves and now restrict the flow on the pressure side. I hope you have a handy valve but you could also simply undo one of the return fittings (now you are increasing flow).....your pressure should drop again.

    If that all checks out, then I would say you have a clean pool that gets little to no dirt and you manage your FC levels so you don't get algae.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  14. Back To Top    #14
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    33,865

    Re: Pressure on Gauge never changes

    To be clear, If you restricted the valve on the return side, the pressure should go up. Removing eyeballs would lower the pressure.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •