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Thread: Neverending green pool

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    Neverending green pool

    I have always had trouble with my water not being a crystal clear that I've seen happening on this site. I'm ready to begin a SLAM to take care of this once and for all. I'm attaching a picture below of my water before beginning. It is green tinted (I'd said blue-green) but cloudy and the bottom is nowhere in site. I can only see down to about the 2nd step of my ladder. I feel like I have bought a pool chemical store with all of the stuff I've used in the past several years. None of which gave me the end result I'm looking for.

    IMG_0480.JPG

    Here are the specs of my pool. It is an above ground, circular 24 foot by 4 1/2 foot with vinyl liner. I use a sand filter (of which the sand was just replaced last summer). It is in complete sun all day and located in Southeast Georgia (with temps close to 100 for the past week).

    As of yesterday, my readings using a Taylor Complete Kit were:

    FC - 1
    Ph - 7.5
    TA - 130
    CYA - 80

    As I said at the beginning, I am getting ready to begin a SLAM and would like some guidance from anyone who has experience in this. I am by no means an expert and feel like I've been led down hundreds of paths to the best way to make my pool right. None have worked yet.

    Thank you!

    Josh

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    Mod Squad tim5055's Avatar
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    Re: Neverending green pool

    Welcome to TFP!!

    Please verify that this is a Taylor K-2006 with the FAS/DPD test (powder & drops to get FC)

    You are going to need to do at least a 50% water exchange to get the CYA down to a manageable level. Conducting a SLAM at 80 takes massive amounts of chlorine.

    Once you have a FAS/DPD test and the CYA in line read the directions on SLAMing your pool in the How To section of Pool School and follow that procedure completely to the end.


    • CC is 0.5 or lower;
    • You pass an OCLT (ie overnight FC loss test shows a loss of 1.0 ppm or less);
    • The water is clear.


    When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.
    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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    cowboycasey's Avatar
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    Re: Neverending green pool

    welcome, the path we follow will get you to crystal clear water
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    Richard320's Avatar
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    Re: Neverending green pool

    Welcome!

    We can get you fixed up.

    Take a look at some of these threads. Start at the last ones and move backwards to see the more recent ones first. If they can do it, you can do it. Just do what they did.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Neverending green pool

    Okay, thanks for the advice and support. I got up this morning to these numbers (I had not started the SLAM yet):

    FC: 0
    Ph 7.7
    TA 140
    CYA 70

    I have since brought the Ph down to about 7.3 and have just given the pool a shock dose of 5 gallons of bleach. I am now praying for everything to go smoothly and quickly.

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    Texas Splash's Avatar
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    Re: Neverending green pool

    Just remember the following now that you say you are SLAMming:
    - With a CYA of 70, your SLAM "FC" level is 28. It MUST stay at or slightly above that to succeed (Maintain)
    - Maintain until 3 objectives are met:
    1. Water is clear
    2. You do not lose any more than 1ppm of FC overnight (that's the OCLT)
    3. CC (Combined Chlorine) is <.5

    - Don't worry about the PH until after the SLAM
    - At the same time, continue to run your pump 24/7. Remove any “muck” and debris, scrub all parts of your pool to expose any algae, and vacuum/clean (or backwash) filter as necessary. You may have to do this several times. It's a lot of babysitting, but with patience and consistency, you will succeed.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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    Re: Neverending green pool

    One hour after initial bleach addition and my FC is 8.2. My CC showed nothing though. I had thought it would show something if it was working. Maybe I'm confused on that bit though. It must have eaten a lot of chlorine because the 5 gallons I put in at first should have boosted the FC up to 28 according to the chart. So, time to add more bleach and test again later.

    - - - Updated - - -

    So, it is safe to be swimming with an FC of that level, correct? It's an above ground with only a partial deck so I will need to be in the pool to do the scrubbing and vacuuming. Would you suggest I do that now or later this evening?

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    Re: Neverending green pool

    there you go, that is exactly what you need to do.. try to keep it between 26 and 30 fc at all times as much as possible, try to take it to 32 before bed, you get the most out of the chlorine at night....
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    Richard320's Avatar
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    Re: Neverending green pool

    You won't always see CC during the SLAM. The sun can cook it off just like FC.

    It's safe to get in up to shock level. I wouldn't wear my newest swim trunks nor dry off with a good towel and I'd head to the shower ASAP.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Neverending green pool

    I just tested and was down to 3. It's very hot and sunny out. I put in 5 more gallons to get it back up. Here we go again!



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    Re: Neverending green pool

    Another test a little over 2 hours since last test. FC is 19. Going to wait until my wife gets home with more bleach to put a dose in for night.

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    Re: Neverending green pool

    Day one of SLAMming complete. I just did a test at 9:30 and my FC was 15. So, I put 3 gallons of bleach in to let it work its magic overnight. We're having a bit of a thunderstorm. Hopefully that won't affect the progress I've made. I can already tell a color difference. It is more blue than green. Sides and ladder were brushed. I found a good bit of algae on the back side of the ladder and steps. So, that's taken care of. Vacuuming is done too.

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    Richard320's Avatar
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    Re: Neverending green pool

    It's amazing how confident you feel when you're doing the testing, isn't it?

    There's no reason your pool can't be crystal clear and sparkling and so easy to maintain you're bored with it by Fourth of July.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Neverending green pool

    True Richard. I feel very in control and not helpless. So, I woke up this morning to a BLUE pool with an FC of 28.5. Didn't lose very much overnight. But, another hot one today, so it's bound to burn off quickly once it heats up. So, blue is the first step but I still cant' see the bottom. So, I'm keeping it at that level until it's clear. Thanks for your support everyone!

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    Mod Squad tim5055's Avatar
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    Re: Neverending green pool

    Quote Originally Posted by jrowell24 View Post
    True Richard. I feel very in control and not helpless. So, I woke up this morning to a BLUE pool with an FC of 28.5. Didn't lose very much overnight. But, another hot one today, so it's bound to burn off quickly once it heats up. So, blue is the first step but I still cant' see the bottom. So, I'm keeping it at that level until it's clear. Thanks for your support everyone!
    This is when before and multiple "during" photos help keep you engaged. With multilpe photos side by side you can see the changes that you may miss just looking at it each day.

    Keep up the fight, you will get there!!
    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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    Steve-in-VA's Avatar
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    Re: Neverending green pool

    Yeah photos help a lot. If you don't have Tapatalk app yet. You should download it, makes photo upload easy.

    Check my story line, this process works. I'll post pictures of my crystal water tonight. Thanks TFP'ers

    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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    Re: Neverending green pool

    In the time since the outage, I've achieved very blue water, but it is still not clear. I'm keeping it at shock level as much as possible and hoping to see some clarity soon. How long does that process usually take?

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    Mod Squad tim5055's Avatar
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    Re: Neverending green pool

    There is no real answer for how long it will take. Kind of like being a kid in the back seat, are we there yet....

    How are the numbers looking? Once the CC are .5 or below and you are passing a the URL="http://www.troublefreepool.com/content/136-perform-the-overnight-fc-chlorine-loss-test-oclt"]Overnight FC Loss Test (OCLT)[/URL] it may be time to try the DE in the Sand Filter trick to speed up clearing the water. But, if you are loosing more than 2ppm FC a night hold off on trying that.
    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: Neverending green pool

    I'll give that a go tonight/tomorrow morning. I raised it to 30 last night around 9:00 and just checked it at 12:00 pm (i know it isn't a OCLT) and it was only down to 23 so it isn't losing an awful lot. I will now put it back up to 28 and then shoot for the OCLT tonight. I haven't had any CC in the past couple of times I've checked.

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    DaninFLA's Avatar
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    Re: Neverending green pool

    if your shock level is 28 and you are losing a lot of FC, take it a few points higher. you want your FC to stay at or above the shock level as much as possible. goal is to keep it at shock the entire time, but with big losses quick in FC, you fall below that number. the more contact time at shock level, the faster your SLAm will be over.

    if you have a removable ladder, take it out at this point and give it a good bleach cleaning and leave it out of the pool until your SLAM is done. it most likely is holding algae that is tough to reach.

    with you being in full sun and running pump 24/7, not surprising to not see any CC. I never showed CC either during my SLAM. it got burned off too quick.

    - - - Updated - - -

    if your shock level is 28 and you are losing a lot of FC, take it a few points higher. you want your FC to stay at or above the shock level as much as possible. goal is to keep it at shock the entire time, but with big losses quick in FC, you fall below that number. the more contact time at shock level, the faster your SLAm will be over.

    if you have a removable ladder, take it out at this point and give it a good bleach cleaning and leave it out of the pool until your SLAM is done. it most likely is holding algae that is tough to reach.

    with you being in full sun and running pump 24/7, not surprising to not see any CC. I never showed CC either during my SLAM. it got burned off too quick.
    Dan
    9,000 gallon in-ground Saltwater pool, plaster, cartridge filer, 1.0 hp pump, Hayward T-15 SWCG, TF-100
    Pool School - Chlorine / CYA Chart; Pool School - Test Kits Compared;

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