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Thread: Best strategy

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    dsilchenstedt's Avatar
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    Best strategy

    So I want to keep my FC 5 or higher. I can only add chlorine in the evening right before sundown. If I take the chlorine up to 18 or 20 at 8pm then by 5pm the next evening it is right around 5 give or take 2ppm. So if there a better way to manage my chlorine if I can only add in the evening around 8pm? Am I doing right by taking it up to shock level every evening to make it till the next evening and not drop below 5ppm?.?
    Round Frame Pool 15' x 42" (app. 3800 gallons) converted to Krystal Clear 2800 GPH .75 HP (conversion thread Here all the links/info you will need are within), TF100 Test Kit with speed stirrer. My first SLAM

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    Texas Splash's Avatar
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    Re: Best strategy

    That's a lot of FC to lose in a day or so. Something is eating your chlorine. You have the right test kit and you have SLAMmed before, so this may another opportunity to excel. Have you done an OCLT lately? Perhaps post all of your readings for us this evening so we can double-check with you?
    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
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    Mod Squad tim5055's Avatar
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    Re: Best strategy

    Something is wrong if you are loosing 13-15ppm of FC every day. Did you finish your SLAM?
    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: Best strategy

    The SLAM went great. The water has never been this clear even before the green spell.
    I wasn't able to get a good OCLT since the pool is at my dads so I guess technically I didn't complete the SLAM thoroughly. I know I'm not losing much at night because I added enough chlorine to be around 18 (wasn't able to test after adding) and the next morning around 8am it was right around there but I haven't done a truly accurate/precise OCLT.
    Today: 7pm
    FC 4
    CC 0
    Ca 50
    TA 110
    CYA 40
    pH 7.5

    I figured for a Texas summer day in direct sunlight that was just the way it was but if that isn't the case I will attempt to do a truly accurate OCLT tomorrow night/morning. I'd love to save some money/time/effort and decrease the chlorine abuse on my equipment.
    Round Frame Pool 15' x 42" (app. 3800 gallons) converted to Krystal Clear 2800 GPH .75 HP (conversion thread Here all the links/info you will need are within), TF100 Test Kit with speed stirrer. My first SLAM

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    Texas Splash's Avatar
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    Re: Best strategy

    Yeah, I'm losing a little more than I'd like here near San Antonio, but what you are losing is too much. Hopefully you can get more accurate numbers this morning. It is quite important to get as accurate as you can ... as long as you are using either the TF-100 or Taylor K2006.
    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
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    Re: Best strategy

    All the above data is accurate and I will get an accurate OCLT tomorrow morning. I guess until I get that you guys can't really help. Nothing in the data above jumps out at me as being problematic.?.? This evening once the sun gets off the water I will add and wait an hour before collecting FC. Then in morning before sun hits the surface I will check FC and compare. What would be considered normal loss for a pool my size in South Texas that's in direct sun from 830am till 7pm
    Round Frame Pool 15' x 42" (app. 3800 gallons) converted to Krystal Clear 2800 GPH .75 HP (conversion thread Here all the links/info you will need are within), TF100 Test Kit with speed stirrer. My first SLAM

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    Re: Best strategy

    That sounds like a great plan. We'll watch for another post tomorrow morning. Have a good day.
    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: Best strategy

    NO WAY will you complete a SLAM by dosing it just once in the evening. It MUST be ........MAINTAINED!
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    Re: Best strategy

    Quote Originally Posted by woodyp View Post
    NO WAY will you complete a SLAM by dosing it just once in the evening. It MUST be ........MAINTAINED!
    You miss understand...I am not slamming but doing an OCLT to figure out and diagnose why i'm losing so much (13-15ppm) free chlorine in a day.
    Round Frame Pool 15' x 42" (app. 3800 gallons) converted to Krystal Clear 2800 GPH .75 HP (conversion thread Here all the links/info you will need are within), TF100 Test Kit with speed stirrer. My first SLAM

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    Re: Best strategy

    Quote Originally Posted by dsilchenstedt View Post
    I wasn't able to get a good OCLT since the pool is at my dads so I guess technically I didn't complete the SLAM thoroughly. I know I'm not losing much at night because I added enough chlorine to be around 18 (wasn't able to test after adding) and the next morning around 8am it was right around there but I haven't done a truly accurate/precise OCLT.
    I think this has identified where the problem is. As Woody points out, a SLAM is continuous until all 3 criteria are passed. Stopping early is a recipe for algae to remain in the water.

    The other bad thing you have going is your low CYA. With as much sun as you get, I would expect to have the CYA at at least 60. But, don't raise CYA until you are sure you have passed a good OCLT.

    I would expect that with your pool 5 ppm loss per day may be acceptable, but not 13.


    Quote Originally Posted by dsilchenstedt View Post
    You miss understand...I am not slamming but doing an OCLT to figure out and diagnose why i'm losing so much (13-15ppm) free chlorine in a day.
    I thought in this post you were doing a SLAM? Algea

    Did you end it with all 3 criteria met?
    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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    Mod Squad woodyp's Avatar
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    Re: Best strategy

    ........."The SLAM went great."

    Obviously not.

    ............."I didn't complete the SLAM thoroughly."

    Enough said.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
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    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    Re: Best strategy

    Quote Originally Posted by tim5055 View Post
    I thought in this post you were doing a SLAM? Algea

    Did you end it with all 3 criteria met?
    I want to say I completed the SLAM but I only did a half attempt at OCLT so I can't say "yes". I will do a very accurate OCLT to make sure no organics are eating away at my FC. Once that is confirmed I will increase my CYA to 60. I apologize for starting this conversation with out a true set of data (OCLT) but I will get this done this evening/tomorrow morning and come back to this conversation prepared.

    I feel like I just called the Dr for a possible issue with my patient but didn't gather vital signs before placing the call and now the Dr is rolling his eyes telling me to call him back when I have the proper data. ~student nurse
    Round Frame Pool 15' x 42" (app. 3800 gallons) converted to Krystal Clear 2800 GPH .75 HP (conversion thread Here all the links/info you will need are within), TF100 Test Kit with speed stirrer. My first SLAM

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    Re: Best strategy

    It's ok! We all make mistakes. We will be glad to help you get back on track.


    26,000 IG, pebble tec, flagstone, pentair Triton II TR100 sand filter & VS+SVRS 3hp multi-speed pump, Intellichlor IC-40 SWG, Pentair Booster Cleaner, spillover spa, waterfall, Taylor K-2006 testkit
    [It is better to know how to learn, than to know. - Dr. Seuss[/I]

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    Re: Best strategy

    Suppose to get rain tonight. I'm assuming this will throw off my OCLT results?.?
    Round Frame Pool 15' x 42" (app. 3800 gallons) converted to Krystal Clear 2800 GPH .75 HP (conversion thread Here all the links/info you will need are within), TF100 Test Kit with speed stirrer. My first SLAM

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    Re: Best strategy

    06/15/2015:
    6pm
    FC 4.5, added 17oz to take it up to 8
    pH between 7.8 and 8.2, added 9oz to get it to 7.5

    8pm
    FC 8
    pH between 7.2 and 7.5

    06/16/2015
    FC 8
    Pool has 0.25" to .5" of rain water in it.

    OCLT 0 = pass
    Pool crystal Clear = pass
    CC 0.5 (turned ever so slightly barely recognizable to the eye) = pass

    Now I can say with confidence that I did in fact complete the SLAM thoroughly. So with this more accurate OCLT Data I will say with confidence "The SLAM went great."

    Now that concern is out of the way we can move forward.
    730am 6/16/15
    FC 8
    CH 50
    TA 90
    CYA between 40 and 50 (I don't quite have a refined eye for it yet)

    I'm not sure why my FC is burning off 13-15ppm. We jack our chlorine to 18 at 7pm nightly because by the time 7pm the next day we are at 4ppm. If we aren't losing any at night then that means we are losing that between the hours of 830am and 800pm daily. With my data provided I don't see the reason why?.? Thanks you for your patience earlier.
    Round Frame Pool 15' x 42" (app. 3800 gallons) converted to Krystal Clear 2800 GPH .75 HP (conversion thread Here all the links/info you will need are within), TF100 Test Kit with speed stirrer. My first SLAM

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    Re: Best strategy

    I had to review your notes on this thread, but I need to confirm something you just said .... Last night you made sure your FC was at "8", and it stayed there overnight until this morning correct? Plus, you pass the CC and OCLT requirements. SLAM complete! So earlier in this thread you felt you were losing 13-15 ppm (daily) of FC. Now that you have completed the SLAM, are you sure that's still the case? Certainly that much loss would be a concern, but since you just confirmed the SLAM completion, maybe you should see how today goes? It's at 8 now, see what it looks like mid-day or this afternoon. Or if you're worried about it dropping too much, add enough bleach to take you to say ... 12, then check later.

    Also, we're about to get pounded by more storms today.
    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.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

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    Mod Squad tim5055's Avatar
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    Re: Best strategy

    Well, only two things cause large drops in FC, organics and UV. You have eliminated organics so it has to be the sun. It is time to get a handle on the CYA test and begin slowly bringing that level up. Loosing that much FC per day I'm going to guess you are loser to to 40 mark than you are the 50 mark. I would add 4 oz (by weight) of CYA which should raise your CYA about 8 to get you closer to 50.
    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: Best strategy

    Quote Originally Posted by Texas Splash View Post
    I had to review your notes on this thread, but I need to confirm something you just said .... Last night you made sure your FC was at "8", and it stayed there overnight until this morning correct? Plus, you pass the CC and OCLT requirements. SLAM complete! So earlier in this thread you felt you were losing 13-15 ppm (daily) of FC. Now that you have completed the SLAM, are you sure that's still the case? Certainly that much loss would be a concern, but since you just confirmed the SLAM completion, maybe you should see how today goes? It's at 8 now, see what it looks like mid-day or this afternoon. Or if you're worried about it dropping too much, add enough bleach to take you to say ... 12, then check later.

    Also, we're about to get pounded by more storms today.
    I completed the SLAM as far as keeping chlorine at shock value a few days ago and haven't changed anything since. The issue was I didn't have a true OCLT result and that is what I got last night. So now my SLAM is officially complete. Hope that makes sense. So waiting to see what happens wouldn't be beneficial, plus, the storm clouds are blocking the sun pretty darn good today .

    Quote Originally Posted by tim5055 View Post
    Well, only two things cause large drops in FC, organics and UV. You have eliminated organics so it has to be the sun. It is time to get a handle on the CYA test and begin slowly bringing that level up. Loosing that much FC per day I'm going to guess you are loser to to 40 mark than you are the 50 mark. I would add 4 oz (by weight) of CYA which should raise your CYA about 8 to get you closer to 50.
    Sounds like a plan!! I will find an old sock and add 4oz by weight of dry cya to my skimmer, then wait a week and retest. Over the course of this week my FC should start to maintain a little to a lot better. we'll see. Thanks guys and I will keep you posted. Texas is already hot and I am loving this stormy weather...again.
    Round Frame Pool 15' x 42" (app. 3800 gallons) converted to Krystal Clear 2800 GPH .75 HP (conversion thread Here all the links/info you will need are within), TF100 Test Kit with speed stirrer. My first SLAM

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    Re: Best strategy

    I am not loving the stormy weather. . I am tired of draining water from my pool to keep it from flooding!


    26,000 IG, pebble tec, flagstone, pentair Triton II TR100 sand filter & VS+SVRS 3hp multi-speed pump, Intellichlor IC-40 SWG, Pentair Booster Cleaner, spillover spa, waterfall, Taylor K-2006 testkit
    [It is better to know how to learn, than to know. - Dr. Seuss[/I]

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    Re: Best strategy

    There is no way you should lose 13-15 FC per day with 40 PPM of stabilizer, and a SLAM-clean pool. I agree with Tim that it must be much lower. See what the Cya increase does for you and report back please.
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