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Thread: Circulation Problems?

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    Join Date
    Jun 2015
    Location
    Houston, Tx
    Posts
    19

    Circulation Problems?

    I am a new pool owner. The pool just got finished in May.

    I struggled at first to keep my chemicals stable and water clear, but then I found TFP. I did a SLAM, I add .5-1 gallon of bleach everyday and my water has been crystal clear with very stable numbers.

    The one thing that still bothers me is all the visible debris I see in the water. During the day you can not see it, but at night near the light it is very apparent that there is a lot of "stuff" floating around my pool. I have attached a pic of my water during the day and one at night.water_day.jpgwater_night.jpg

    I am now wondering if I am having a circulation problem and my water is not getting filtered appropriately. The specs on my pump say it should do 142 gallons a minute. I run my pump 8 hours a day which should turn my water over more than twice a day.

    So that makes me question my plumbing. My experience with my pool builder was less than great and I wouldn't be surprised I have a problem with my circulation but I don't really know how to be sure.

    So my question is how do I test my circulation? When I feel that pressure coming out of the returns I can pretty easily stop the water with my thumb. Is that typical? When I dive down to the bottom of the pool I can not feel any suction from the intakes at the bottom of the pool. Is this typical? Is the suction that usually goes through these pretty imperceptible? Being a new pool owner I just don't really know what is normal.

    Thanks for any input or suggestions.
    In ground 30,000 gallon rectangular plaster/pebble pool, hot tub with blower, 2 HP Pentair WisperFlo Single Speed Pump, 420 Pentair Clean and Clear Plus Cartridge Filter, Pentair Rainbow 320 Chlorinator, Easy Touch Control System, Pentair 400K BTU heater, Interfab G Force Slide with dedicated 1 HP pump, Travertine Decking, CoverStar automatic pool cover

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    Mod Squad zea3's Avatar
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    Jul 2009
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    Houston, Texas
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    Re: Circulation Problems?

    In front of the light at night you will be able to see more debris in the water than in the daytime. It doesn't mean there is a problem with circulation or filtration. Pollen, air born dust, and particulate too fine for your filter to catch will show up at night in the lights.

    How often do you need to vacuum?

    How long has it been since the slam was completed? It may take awhile to filter out the finer debris.

    You should not feel strong suction at the main drain. There should be two main drains plumbed side by side, far enough apart that you cannot lie across and block both of them. They operate together, either both on or both off to prevent entrapment.

    How long has it been since the cartridges were cleaned? How often do you brush the pool? Curing plaster releases a lot of plaster dust,and that may be what you are seeing as well.
    TFP Moderator
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    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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  3. Back To Top    #3

    Join Date
    Jun 2015
    Location
    Houston, Tx
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    19

    Re: Circulation Problems?

    I have a automatic vacuum connected to a booster pump that I run the same time I run the filter (8hrs).
    In ground 30,000 gallon rectangular plaster/pebble pool, hot tub with blower, 2 HP Pentair WisperFlo Single Speed Pump, 420 Pentair Clean and Clear Plus Cartridge Filter, Pentair Rainbow 320 Chlorinator, Easy Touch Control System, Pentair 400K BTU heater, Interfab G Force Slide with dedicated 1 HP pump, Travertine Decking, CoverStar automatic pool cover

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    Steve-in-VA's Avatar
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    May 2015
    Location
    Smithfield/Virginia
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    Re: Circulation Problems?

    Even with my new 2 speed pumps on low I cannot stop the flow. Seems like you have weak pressure might need to clean filter and see if that helps first.

    21,200 gallon/ 30' vinyl round above ground pool/ 200# hayward sand filter/1.5 hp hayward pump (70gl/m) /
    /self installed pool about 3 years ago - Smithfield, VA- Pool filled with well water -TF100 kit

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    Join Date
    Jan 2015
    Location
    Anthem, AZ
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    178

    Re: Circulation Problems?

    i have that stuff in my pool when the light is on at night also. it drives me crazy, and i think the water is dirty. glad to see its not just me.

    i run 8-12 hours 1500rpm on intelliflo VS
    19K IG Pebbletec with attached spa. 60sqft Cartridge filter, Intelliflow VS, 399k BTU Gas Heater, Pentair IC40. Phoenix, AZ, full sun.

  6. Back To Top    #6

    Re: Circulation Problems?

    I run my pump 24/7 @ 1200rpm. Still have particulates under a spotlight.
    It seems better though at a lower rpm. Maybe the high flow stirs up debris that would normally sink to the bottom. I run the robot on a quick cycle 2-3 times a week.
    I don't really care. It's crystal clear in the day and the chem levels are fine.
    24k gallon inground vinyl liner pool, 8'-3' depth, 2 skimmers, 3 returns, basic 5 chem kit.
    Hayward: DE-60 filter, Superpump VS, AquaRite salt chlorinator w/T-Cell 15, TigerShark QC robot. Jacuzzi hot tub ~350gal. Air blower type, w/8 jets.

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    wjr75's Avatar
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    Jun 2013
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    IL
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    816

    Re: Circulation Problems?

    My old plaster finish had that problem when we first bought our house. With the new finish it may just be plaster dust is my guess. Our pebble sheen doesn't have it anymore.
    Inground 22k gallon gunite 15x31 main pool, 15x7 wading pool/sunning deck, hot tub/with overflow (9' octagon with limestone top) & slide NSWG, Aqua Blue Pebble Sheen
    Filter dual cartridge Sta-rite 450sq/ft, TF-100 Test Kit
    Heater Raypak 2100 400k btu cupro-nickel exchanger
    Auto pool cover, Polaris 280 auto pool cleaner, Jandy AqualinkRS8 Remote Control System

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