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Thread: Am I being impatient?

  1. Back To Top    #1

    Join Date
    Jun 2015
    Ada Michigan

    Am I being impatient?

    Every year I remove the winter cover to discover an emerald green pool. This year was going well to clean up until a few days ago. I'm trying to shock it but after 3 days the water doesn't look any different. Pump has been running 24/7 since I took off the cover 2 weeks ago. Running on low overnight and high from 11am-4pm.

    After running the pump for a week the water was crystal clear but there was a thick layer of green on all the walls. I vacuumed the shallow end and it looked good and 3 days ago started working on the deep end. Parents were helping me vacuuming and while I was out I'm assuming the filter pressure got way too high as it had actually leaked water out of the top of the multiport valve. It wasn't still leaking when I noticed that, and it was reading 34 PSI. I'm assuming whatever was getting vacuumed somehow recirculated instead, the water went from clear to a hazy green about the same color as my yard. I can barely see the bottom of the shallow end now whereas before I could clearly see the bottom drain.

    Do I need to just wait this out or might there be an issue with my sand filter?

    I have a TF test kit, though it's a good year and a half old in case that would skew some of my numbers
    FC: 21
    CC: 1
    pH: 8ish? The color was between 7.8 and 8.2, have added pH down since but need to pick up some muriatic acid
    TA: 100
    CH: 200
    CYA: Have a hard time on this, at 50 I can sort of barely make out the black dot because I know where it is, at 30 it's nothing but cloudy white. Definitely between 30-50
    Phosphates: over 1,000 ppb
    Current water temp: 77 deg

    I also pulled some numbers as my filter PSI is fairly high. Brand new gauge that is only 2 weeks old, reads zero with pump off.
    filtering bypassing solar heater - 29 PSI
    filtering using solar heating - 33 PSI
    recirculating bypassing solar heater - 27 PSI
    backwashing - 20 PSI
    Pool shed is maybe a 50-60' run for the return and longer for the intake. Skimmer and floor drain are 1.5" PVC lines, return is a single 1.5" PVC line. No eyes currently installed.
    20x40 IG - 40,000 gallon with cement? walls
    Hayward S270T Pro sand filter
    Hayward SP32152EE TriStar 1-1/2 HP 2-Speed pump
    Del Ozone Eclipse 4
    2x20 Sungrabber solar pool heater panels

  2. Back To Top    #2

    Join Date
    Jan 2014
    Buckeye AZ

    Re: Am I being impatient?

    you said you shocked the pool, in what manner was that? Poured in granules? How long after your "shock" did you take that FC reading? If you have an algae outbreak, you'll need to come up to shock level and keep it there continuously until you've defeated the bloom. Not just a one-time shock.

    When the forum is running well again we'll follow up with specific advice, links to the SLAM, etc.
    10,500 gal IG, Topaz Pebble, auto-level
    Hayward DE filter, 2HP Ecostar VSP, ProLogic PS-4, GVA actuators
    Cal Pools Wave Force Plus (wall return jets plus 2 floor pop-ups), Venturi Skimmer
    Water sheer, 2 wok pots, bubbler stem on the baja step
    ColorLogic Mutlicolor LED lamp. Taylor 2006+speed stir

  3. Back To Top    #3
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: Am I being impatient?

    TF100 should be ok at 18 mo old if it was stored inside. PH test is not valid when FC is above 10, so don't test and don't adjust based on those results.

    Here is the process to your pool.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  4. Back To Top    #4

    Join Date
    Apr 2013
    North OKC Area

    Re: Am I being impatient?

    The thick layer of algae getting brushed and then coming into contact with the chlorine will cause cloudiness. Are your PSI readings taken right after a thorough backwash and rinse?

  5. Back To Top    #5

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Am I being impatient?

    Welcome to the forum.
    After running the pump for a week the water was crystal clear but there was a thick layer of green on all the walls.
    I stopped reading right there. It is pointless to analyze your pool issues when you have an algae farm instead of a pool.

    You must SLAM your pool if you expect to get it cleared up. SLAMming specifically includes high amounts of chlorine and BRUSHING and FILTERING to get your pool clean. Now that you brush the pool, the filter naturally begins to get clogged with all the debris and your psi goes up. At 34 psi, you had almost ZERO water flow in your pool.......You must backwash before that.

    So, read the SLAM article and follow those directions to a T and your pool will clear.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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