Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 11 of 11

Thread: I need serious help.

  1. Back To Top    #1

    I need serious help.

    We bought a house in October of last year with an inground, vinyl lined pool. A week after we moved in, a company came in and closed it. We opened it (took off the cover, opened all the ports, started the filter) and it was very green. The local pool shop sold me a couple of bottles of algaecide and pool shock and told me to run the algaecide for 24 hours, then the shock. The pool went from British racing green to cloudy grey, then promptly back to green. I went back, and they had me do the same thing again. It again, it went from green to slate grey back to green. So far, I'm 2-3 hours a day (vacuuming, skimming, brushing, adding chemistry, etc) plus $500 into this green nightmare and I'm at my wit's end. I'm now thinking that $500 might have been better spent renting a jackhammer to bury this monstrosity. What am I doing wrong?
    Glo
    pool: INGROUND 18x36..about 10,000 gals, vinyl liner, SWG

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,078

    Re: I need serious help.

    You are not shocking your pool thoroughly enough. It is a common error. You must put high levels of chlorine in your pool and HOLD IT THERE until your pool is completely clear.

    read "How to Shock Your Pool" up in Pool School.

    I would suggest you use household bleach for your chlorine source and stay out of the pool store.....save some money.

    Your neighbors will be upset if you rent that jackhammer and run it on Sunday AM!! ......We'll help you get the pool crystal clear.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: I need serious help.

    Welcome to TFP!

    You really need a full set of water test results. By far the best thing to do is to purchase a top quality test kit. I recommend the TF-100 from TFTestKits.Net. The Taylor K-2006 is also good. For now, you can get test results from a pool store.

    Without test results, I can't be very specific, but essentially you are not using enough chlorine. When the algae turned gray it was mostly dead, and when it turned green it was actively growing again. That happens when you haven't added enough chlorine.

    I would skip the algaecide completely and use chlorine along. But the details depend on your water test results.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  4. Back To Top    #4

    Re: I need serious help.

    Here are the test results from an hour before I posted the original issue:

    pH approximately 7.5
    ppm Free Chlorine 3
    ppm Total Alkalinity about 100
    ppm Stabilizer 100

    After reading this, I dumped the last three gallons of "pool shock" into the pool. Seriously, I should use clorox? Can I sue you guys if that ruins stuff?
    Glo
    pool: INGROUND 18x36..about 10,000 gals, vinyl liner, SWG

  5. Back To Top    #5
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: I need serious help.

    Your CYA level is way to high, which is why you are not able to make progress fighting the algae. The common CYA test will report CYA levels over 100 as 100, so your CYA level might actually be much higher than 100.

    You should stop adding chlorine, and replace water to get your CYA level down to something more reasonable before going back to shocking the pool.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  6. Back To Top    #6

    Join Date
    Apr 2010
    Location
    Ozark, Alabama
    Posts
    40

    Re: I need serious help.

    +1 to what Jason said, just don't drain too much or you'll float your liner and ruin it. I would suggest draining maybe a third, refill and then check your CYA again.
    Pool Specs: 18x36 (~ 24,000 gal) IG vinyl w/ chlorinated water and 75 GPM sand filter with a 1 HP pump.

  7. Back To Top    #7

    Re: I need serious help.

    uberculture.. total newbie here, i started the BBB this year. Pool man turned everything on and i took it from there. I'll open myself next time. Get a good kit, 100xl is what i got. Went to the pool store (because it's only couple of minutes away) and got some 12.5% chlorine and nothing else. Raised the fc to shock and checked it every couple hours starting out. Brushed 2-3 times a day (3 day weekend) and kept the chlorine level up. Backwashed plenty and in a few days had sparkling water with an investment well under 100 bucks. No unneeded chemicals added either,just chlorine (cya was already high at 70). This method works and is easy once you get it going. Just got a liquidator started with the expert help of persons on here, especially sal and brian. Check it out later, you'll probably like the operation.
    21000 Gallons I/G,,Vinyl,, 1.5 H.P. Hayward Pump,, Hayward Sand Filter S244T.. Liquidator.

  8. Back To Top    #8

    Re: I need serious help.

    Lots of info here... sounds like I may want a more exact test kit. I have strips to dip in and compare to a color chart on back, with some pretty large ranges. Anyway, did a little draining, refilling, and retesting...

    Here's where I sit this morning:


    pH approximately 7.8
    ppm Free Chlorine somewhere between 5-10 (although my test kit maxes at 10)
    ppm Total Alkalinity about 120
    ppm Stabilizer matches the color that's marked 30-50 now better than it matched the 100 mark

    I'll read up again on shocking, but it really is okay to just use household bleach?
    Glo
    pool: INGROUND 18x36..about 10,000 gals, vinyl liner, SWG

  9. Back To Top    #9
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,342

    Re: I need serious help.

    I urge you to get a good test kit sooner rather then later. You'll be glad you did once oyu get it.

    It is very ok to use bleach.

    Your pH is a little high if you can believe the strips. I'd recommend bringing it down to about 7.2 before starting to shock your pool.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  10. Back To Top    #10
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: I need serious help.

    The only difference between traditional unscented household bleach and the liquid chlorine you can buy in pool stores is the concentration (bleach is usually 5.75% and pool store liquid chlorine is around 12%) Not the higher the concentration the shorter the shelf life, so never buy old stock as it will be weaker.

    Note the common pool chlorine compounds all add chlorine plus something else:

    Bleach/Liquid Chlorine (sodium hypochlorite) adds chlorine plus salt to the water

    Tri-Chlor and Di-Chlor add chlorine and CYA stabilizer (this is what get most people in trouble with too high of CYA levels)

    Cal-Hypo (adds chlorine and calcium)

    Of these three bleach giving chlorine + salt is usually the safest for most pools (Calcium Hardness should not be over 250-300 ppm, CYA should be kept around 50 ppm, but salt can easily 1,000 ppm before it is noticed, and is required to run over 3,000 ppm if you use a salt water chlorine generator.

    Ike
    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~

  11. Back To Top    #11
    esim13's Avatar
    Join Date
    Oct 2009
    Location
    Denham Springs, Louisiana
    Posts
    320

    Re: I need serious help.

    duraleigh posted this earlier.... check it out, it should help with the bleach feeling.

    water-clarity-and-showin-off-just-a-little-t23969.html

    AWESOME isn't it?
    10,408 gallon, 21' round, 52 in' deep AG, half in ground
    Artesian Clear Master Plus Sand Filter, Artesian Turbo King 2 hp pump, installed June 08
    Denham Springs, Louisiana
    GEAUX TIGERS!
    Pics taken 2012
    http://i941.photobucket.com/albums/ad25 ... CN0606.jpg
    http://i941.photobucket.com/albums/ad25 ... CN0607.jpg

Posting Permissions

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