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Thread: Balancing my water + getting ready for slam

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    Balancing my water + getting ready for slam

    I have read through this website and been using my new Taylor K-2006 test kit for 2 weeks now. Everything was great for the first week and then I had a little algae problem last weekend and then back again this past Thursday evening. I am now in the process of lowering my CyA levels before slamming my pool...hopefully Monday. I was frequently going to Leslie's to have my pool water tested, but I have not been back because since I have had algae problems all summer, Leslies has not worked. Also, I will never be using dichlor again as I have had continuous CyA jumps that I am going nuts.

    Here are my levels for the past few days:
    9/30--coming down from shock of liqued chlorine
    FC 7
    CC 0
    pH 7.6
    TA 125
    CH 300
    CyA 100

    10/3--algae present, vacuumed to waste 6 inches of water and refilled, added 3oz dichlor because that's all I had and felt I needed to add something
    FC 1.8
    CC .2
    pH 7.8
    TA 125
    CH 300
    CyA 100

    Today--10/4--water looks better, but still slighlty green, drained 9 inches of water and it is refilling now---water is looking better but still cloudy
    FC 2.8
    CC .02
    pH 8.0
    TA 125
    CH 300
    CyA 100

    Questions:

    1-Did I continuously have an algae problem all summer long because my CyA level was high and I let my FC level get too low (because I thought I was doing good keeping it in the "ideal" range)?

    2-When draining and refilling the pool, how often can I test the CyA level?...and my test kit did not come with much of that, so i need to buy more.

    3- Should I start adjusting the pH and TA before I slam the pool? (background--I have had a problem with the pH and TA being high all summer too)

    Thank you in advance and I hope I have given you enough info. I have had my pool up for a 1 1/2 years and it has never been neglected....I feel I just don't know enough and I have been given the wrong info at the pool store. For the first year, my pool stayed crystal clear until July 2014. Thank you!!
    8500 gallons, Intex Ultra Frame above ground vinyl pool, Krystal Clear Sand Filter Pump 14" model SF15110, I have had the pool up and running since 6/2013

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    Re: Balancing my water + getting ready for slam

    1. Probably. Test strips are simply inadequate to manage your pool properly as you have discovered.

    2. To get you CYA to a manageable 50 ppm CYA level, you must drain 50% of your water at least. There is no reason to test until you do that

    3. Yes. Adjust your pH, disregard TA. Put your pH in the low to mid 7"s (no reason to do this until you get your CYA manageable.....that's the first step)
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Balancing my water + getting ready for slam

    Ok, I think I'm ready to slam to make my pool pretty again. I have not added any chemicals since 10/3, only partial drains and refills. Algae on the bottom has been vacuumed up and I have brushed the pool. Filter is backwashed. Pool water is slightly green and cloudy.
    Numbers for today (10/6) from 2 different sides of my circular pool:

    FC .4 and .4
    CC 0 and 0
    pH 7.4 and 7.2
    TA 175 and 175
    CH 300 and 250
    CyA 40 and 40

    According to pool math, I will add 1 1/3 gallons of 10% liqued chlorine. Is that all you would suggest at this point?
    Thank you!
    8500 gallons, Intex Ultra Frame above ground vinyl pool, Krystal Clear Sand Filter Pump 14" model SF15110, I have had the pool up and running since 6/2013

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    JoeSelf's Avatar
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    Re: Balancing my water + getting ready for slam

    You need chlorine now. Slam, keep the level up @ 16 for CYA of 40. test often and add chlorine to keep the level @ or slightly above 16. Lost of water to get down using partial drains.
    13700 gal, 32'x16'x54" AG oval, vinyl, Echo Canyon II, 8500 series, Narrow Yard, Safety Fence & Stair, Sta-Rite Crystal Flow T-210WF, 44 GPM, Hayward SP1580TL 1HP Pump, Aqua Luminator, Festiva wedding cake steps, March 2006, TFT-100, Speed-Stir, Sample Sizer. Avatar Credit: TJ Townsend

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    Re: Balancing my water + getting ready for slam

    Quote Originally Posted by Corabell78 View Post
    Ok, I think I'm ready to slam to make my pool pretty again. I have not added any chemicals since 10/3, only partial drains and refills. Algae on the bottom has been vacuumed up and I have brushed the pool. Filter is backwashed. Pool water is slightly green and cloudy.
    Numbers for today (10/6) from 2 different sides of my circular pool:

    FC .4 and .4
    CC 0 and 0
    pH 7.4 and 7.2
    TA 175 and 175
    CH 300 and 250
    CyA 40 and 40

    According to pool math, I will add 1 1/3 gallons of 10% liqued chlorine. Is that all you would suggest at this point?
    Thank you!
    The 1 1/3 gallons looks OK to get your FC to 16 (CYA 40, 8500 gallons). Keep in mind, though, that you want to maintain that FC level at 16 (i.e. not let it drop below 16, around the clock). So you'd probably want to add a bit more initially, and check frequently (every few hours if you can) on FC, adding more chlorine as needed each time.

    How's it going (seeing that you posted this question a couple of days ago)? Is the water looking any different?
    18' x 48" ring top pool (Summer Escapes); 5500 gallons; set up June - October, stored during winter; Intex 2500 gph pump (B size cartridge filter) Hayward 21" sand filter + 1.5 hp single speed Powerflo Matrix pump (upgrade October 2016) *** K-2006 test kit, refills from tftestkits

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    Re: Balancing my water + getting ready for slam

    I'm assuming you did a partial drain and refill to get your CYA down. You've probably used up most of your r-0013 reagent with all those tests. If you haven't already, I'd look for a refill ASAP. You really don't need to retest cya daily-- especially twice a day unless you've done something drastic to your pool water. The r-0013 reagent is pretty shelf stable, so you might want to search for a 16 oz bottle. it's generally cost-effective to do that. Mine has lasted almost 2 years now and has provided pretty consistent results. It only cost me a buck more than a 2 Oz bottle at Leslie's when I was in a hurry to get a refill.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: Balancing my water + getting ready for slam

    Numbers for today (10/6) from 2 different sides of my circular pool:
    Pump running for at least 30 minutes prior to testing, there is no need to test in different areas of your pool.....one will suffice
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Balancing my water + getting ready for slam

    Yes, my pool is looking good and I'm letting the FC down now. I ended up adding 3 gallons of 10% chlorine and 2 lbs of dry acid for the pH over 2 days. My TA still seems high. Yesterdays (10/8) test results were:

    FC 15.5
    CC 0
    pH 7.4
    TA 150
    CH 300

    Yes, partial drains and refill was a lot of water....and now I do not need to water my backyard for awhile! I need to buy more r-0013 and will buy the bigger bottle, thanks.
    8500 gallons, Intex Ultra Frame above ground vinyl pool, Krystal Clear Sand Filter Pump 14" model SF15110, I have had the pool up and running since 6/2013

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    Re: Balancing my water + getting ready for slam

    So, you didn't do a slam? Slam isn't a one-time event. Have you done an OCLT?
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: Balancing my water + getting ready for slam

    Please note that if FC is above 10 it will cause your pH to read high. In the future do not make pH adjustments until the FC has drifted down. Keep an eye on pH as it may be lower than you think.
    TF-100 Test Kit
    22,000 gallon, 20x40 kidney-shape IG plaster pool built in 1986
    Nautilus NS-36 DE filter, Hayward Self Prime Super Pump 1HP
    Polaris Automatic Pool Cleaner, PB4-60 3/4 HP pump

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    Re: Balancing my water + getting ready for slam

    Quote Originally Posted by timerguy View Post
    So, you didn't do a slam? Slam isn't a one-time event. Have you done an OCLT?
    I did slam over a 2 day period. I kept FC above 16 for 3 days using 3 gallons of chlorine...did I not do it right? I don't know what OCTL is.

    - - - Updated - - -

    Quote Originally Posted by swoopman View Post
    Please note that if FC is above 10 it will cause your pH to read high. In the future do not make pH adjustments until the FC has drifted down. Keep an eye on pH as it may be lower than you think.
    Thank you. Pool looks good, vacumming dead algae from the bottom. Test results from this morning:

    FC 6.2
    CC .2
    pH 7.4
    TA 150
    CH 275

    Any recommendations?
    8500 gallons, Intex Ultra Frame above ground vinyl pool, Krystal Clear Sand Filter Pump 14" model SF15110, I have had the pool up and running since 6/2013

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    pwrstrk's Avatar
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    Balancing my water + getting ready for slam

    Here is the OCLT Test. It's one of the three criteria to pass to stop the SLAM process.
    The two other ones are Crystal Clear Water and CC of 0.5 or less.
    Here is the SLAM Process if you need to refresh yourself. 😎
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    pwrstrk's Avatar
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    Re: Balancing my water + getting ready for slam

    Your CC's looks good. Water crystal clear and pass the OCLT and your done.
    Use the 10 ML sample. It's plenty accurate enough. 😎
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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