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Thread: What the heck went wrong....

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    What the heck went wrong....

    so i posted yesterday about the cloudiness. Its not due to high CH level. here is my test results:

    FC: 3.5 Goal is 6.
    CC: 0
    pH: 7.5
    TA: 70
    CH; 190
    CYA: should still be 50. last tested 2 weeks ago. tested twice. No significant water change. So im still going with 50 for now.

    Passed OCLT last night. Pool lost 1ppm.

    But it still looked dirty and murky. thought maybe it was dirt. but it never settled. Been running pump on high all morning.

    Finally, I said the heck with it, and mixed up the two bags of Quick Shock the pool company gave me with the pool in a bucket and tossed it in to see what would happen. Within about 10 minutes, the brownish murkiness started to fade to blue.

    needless to say, SLAM process started. I added 2 bottles of 8.25% since im not sure how much chlorine that quick shock **** has. im gonna wait an hour and test FC. Im going to go ahead and target my FC level for mustard algae because I dont know what the deal is.

    test results good. passed OCLT.

    what the heck is going on?

    this ticks me off. i have never had to SLAM with the TFPC method. and I stay on top of it.

    I must have dropped the ball somewhere. I would like to know where so that I can prevent it in the future.
    Partially buried Doughboy Desert Spring 16 x 32, sport pool, with 7 ft deep middle, 20,000 gallons, Hayward Powerflo Matrix 1.5 HP 2 speed pump, 250 lb sandfilter, 2 Doughboy skimmers and 2 returns. 2 cascade fountains.
    Taylor K-2006 kit. Zodiac Barracuda Ranger suction side cleaner.
    TFPC method and is crystal clear every day thanks to TFP!!!

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    Mod Squad JVTrain's Avatar
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    Re: What the heck went wrong....

    Was FC regularly dropping below 4? I notice it was in those results and you should always be above 4 with a CYA of 50 ppm.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
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    Mod Squad tim5055's Avatar
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    Re: What the heck went wrong....

    And with those two bags of Shock your CYA may have gone up. Most solid forms of chlorine have substantial amounts of CYA.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: What the heck went wrong....

    dang. i thought it was 3!! some days it would go below 4 and others not. i just tested FC. 16.5. Just added 3 more jugs. (on this pool every 30 oz is 1 ppm) So its now at 29 which is mustard algae level. it is clearing up fast so whatever is, its dying a fast death.

    - - - Updated - - -

    Quote Originally Posted by tim5055 View Post
    And with those two bags of Shock your CYA may have gone up. Most solid forms of chlorine have substantial amounts of CYA.
    yeah, i wouldnt think 2 bags would up it that much. but I had them, dont ever buy them, figured I might as well use them. Ill recheck CYA level later. At this high of a FC level, i should be OK.
    Partially buried Doughboy Desert Spring 16 x 32, sport pool, with 7 ft deep middle, 20,000 gallons, Hayward Powerflo Matrix 1.5 HP 2 speed pump, 250 lb sandfilter, 2 Doughboy skimmers and 2 returns. 2 cascade fountains.
    Taylor K-2006 kit. Zodiac Barracuda Ranger suction side cleaner.
    TFPC method and is crystal clear every day thanks to TFP!!!

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    Re: What the heck went wrong....

    i still see either dirt or dead algae on the bottom of the pool. can I run my barracuda while SLAMing?
    Partially buried Doughboy Desert Spring 16 x 32, sport pool, with 7 ft deep middle, 20,000 gallons, Hayward Powerflo Matrix 1.5 HP 2 speed pump, 250 lb sandfilter, 2 Doughboy skimmers and 2 returns. 2 cascade fountains.
    Taylor K-2006 kit. Zodiac Barracuda Ranger suction side cleaner.
    TFPC method and is crystal clear every day thanks to TFP!!!

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    Mod Squad jblizzle's Avatar
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    Re: What the heck went wrong....

    That was trichlor I think and the 2 pounds added 11ppm FC and 6.7ppm CYA.
    Jason, TFP Moderator
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    Re: What the heck went wrong....

    Quote Originally Posted by jblizzle View Post
    That was trichlor I think and the 2 pounds added 11ppm FC and 6.7ppm CYA.
    thanks jblizzle. I dont have any more quick shock and wont use anymore, I just thought it would give my slam a nice kick start. With the amount of water my kids splash out and i have to replenish, 6.7 wont last long.

    I tested again. FC went down to 14 from 29 in 3 hours. Pool is blue but still not crystal clear. CC is 1.5 ppm. I hit it with 2 more bottles of 8% to bump it back up to about 22 ppm. (16 is target). I noticed filter pressure was up to 18 psi, normally 10, so I backwashed. its back down to 10. water was nasty dirty. probably dead algae. I have had Barracuda going since 230 cleaning up the bottom.

    i do seem to be winning as it looks better everytime I go look at it.

    well. this will teach me to keep a better eye on the pool. im going through my bleach reserves....

    im going to head to walmart in a bit and grab about a dozen bottles.

    i still dont know how this snuck up on me.....
    Partially buried Doughboy Desert Spring 16 x 32, sport pool, with 7 ft deep middle, 20,000 gallons, Hayward Powerflo Matrix 1.5 HP 2 speed pump, 250 lb sandfilter, 2 Doughboy skimmers and 2 returns. 2 cascade fountains.
    Taylor K-2006 kit. Zodiac Barracuda Ranger suction side cleaner.
    TFPC method and is crystal clear every day thanks to TFP!!!

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    Mod Squad jblizzle's Avatar
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    Re: What the heck went wrong....

    Do not overshoot the shock level so much or you will damage your liner. If your shock level is 16ppm, that is what you should be targeting.

    Remember to backwash when the pressure rises 20-25% over the clean pressure (that is at 12psi ... waiting up to 18psi is way too long).
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    Re: What the heck went wrong....

    Sounds like a pool school refresher course is in order. Relax, pop a beer , at least you know how to fix it and have the right tools to do it with. We all screw up occasionally.
    12000 Gallon IG Plaster built 2/15/2014. Jandy 340 sg ft 127 gpm filter, Jandy 1 HP stealth pump. Circupool RJ-45 SWG (overkill). TF-100 with Speed Stir.

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    Re: What the heck went wrong....

    well, i got her right back! water is crystal clear. FC is still at 20ppm from last night. Im not adding anymore. Tonight ill do an OCLT to make sure im done slamming.

    I tested CYA, its at 55ppm. Im just gonna leave it as with my boys' splashing, and my adding about 200 gallons a week in replacement water im sure it will drop back down below 50 within a month.

    I havent tested pH or anything else since FC is still above shock level.

    Looking back, I should have had a higher target value for my FC. TFP goal on pool calc was 4-8 ppm. In the past, I always split the difference and targeted in the middle of the range. So I was hitting 6 ppm as a target, and I mistook the bottom end as 3, instead of 4. it was frequently dropping to 3 and 3.5 ppm which evidently is enough to allow an algae bloom.

    with 55 ppm CYA, now the range is 4-9 ppm FC. I will stop splitting the difference and target for the high end of the range at 9. This mistake wont happen again, ill make sure that FC never even drops to 4, let alone below it.
    Partially buried Doughboy Desert Spring 16 x 32, sport pool, with 7 ft deep middle, 20,000 gallons, Hayward Powerflo Matrix 1.5 HP 2 speed pump, 250 lb sandfilter, 2 Doughboy skimmers and 2 returns. 2 cascade fountains.
    Taylor K-2006 kit. Zodiac Barracuda Ranger suction side cleaner.
    TFPC method and is crystal clear every day thanks to TFP!!!

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    Mod Squad tim5055's Avatar
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    Re: What the heck went wrong....

    Maybe it's time to add a Stenner pump?
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: What the heck went wrong....

    Quote Originally Posted by jblizzle View Post
    Do not overshoot the shock level so much or you will damage your liner. If your shock level is 16ppm, that is what you should be targeting.

    Remember to backwash when the pressure rises 20-25% over the clean pressure (that is at 12psi ... waiting up to 18psi is way too long).
    thanks for all your help Jason. The only reason I went over shock level was that I was at work. I would stop by the house every couple of hours to re-test FC and add more bleach. At first, the pool was consuming it very fast and with my job, I can very easily get tied up for 3 -4 or more hours. I was going over shock level in case I couldnt make it back home, I would have a bit of a buffer to make sure FC didnt go below 16. the mustard algea shock level was 29, so I figured as long as I didnt go above that, there would be no chance of liner damage.

    on my filter, my old intex 2650 never had a psi gauge, just a green - yellow - red guage and instructions were to backwash when filter gets in the yellow. No idea what psi that is. Im still getting used to having "real" pool equipment.

    i didnt know what psi to backwash at, now that I know its 12, I will certainly follow that.

    again, thanks for all your help, as always, your spot on!

    - - - Updated - - -

    Quote Originally Posted by tim5055 View Post
    Maybe it's time to add a Stenner pump?
    a whaaaat? link please...
    Partially buried Doughboy Desert Spring 16 x 32, sport pool, with 7 ft deep middle, 20,000 gallons, Hayward Powerflo Matrix 1.5 HP 2 speed pump, 250 lb sandfilter, 2 Doughboy skimmers and 2 returns. 2 cascade fountains.
    Taylor K-2006 kit. Zodiac Barracuda Ranger suction side cleaner.
    TFPC method and is crystal clear every day thanks to TFP!!!

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    Mod Squad tim5055's Avatar
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    Re: What the heck went wrong....

    Quote Originally Posted by gtnos View Post
    a whaaaat? link please...
    A pump to automatically add chlorine to the pool.

    Here is my install

    You still have to test and adjust, but you are not carrying bottles to the pool every day. Mine is sitting with about 12 gallons in it now and it appears I will be able to go around a week without manually adding. I'm still playing with the settings and how much it delivers.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: What the heck went wrong....

    Quote Originally Posted by tim5055 View Post
    A pump to automatically add chlorine to the pool.

    Here is my install

    You still have to test and adjust, but you are not carrying bottles to the pool every day. Mine is sitting with about 12 gallons in it now and it appears I will be able to go around a week without manually adding. I'm still playing with the settings and how much it delivers.
    interesting.... any pics?

    EDIT: never mind on pics. my browser didnt load that page right the first time. once I refreshed.... now I see.... very interesting.
    Partially buried Doughboy Desert Spring 16 x 32, sport pool, with 7 ft deep middle, 20,000 gallons, Hayward Powerflo Matrix 1.5 HP 2 speed pump, 250 lb sandfilter, 2 Doughboy skimmers and 2 returns. 2 cascade fountains.
    Taylor K-2006 kit. Zodiac Barracuda Ranger suction side cleaner.
    TFPC method and is crystal clear every day thanks to TFP!!!

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    Mod Squad tim5055's Avatar
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    Re: What the heck went wrong....

    Quote Originally Posted by gtnos View Post
    interesting.... any pics?
    Click the link
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    bobodaclown's Avatar
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    Re: What the heck went wrong....

    If there is a local pool store or hardware store that sell the 2.5 gallon totes of liquid chlorine it's sometimes a better deal then the gallon bottles. You may want to look into it.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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