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Thread: Opening numbers....am I doing this right?

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    Opening numbers....am I doing this right?

    Ok so I opened my pool 2 days ago to find a quite lovely shade of green slime on the sides and bottom. I brushed as much as I could see. I added 16oz of 3% copper algaecide and ran the pump in recirculate for 18 hours. Pool is now mostly blue but very cloudy. I did my initial tests...
    FC no surprise 0
    CYA under 30
    Alkalinity 50
    pH above 8

    With the CYA being below 30 I added 2x 1lb bags of dichlor shock in hopes to bring CYA up a little and get the FC up.
    Also added 1/2 jug of muriatic acid to bring pH down and baking soda for the alkalinity.
    Retested today and numbers are as follows:

    FC 7.5
    CC 0
    CYA 55
    pH 7.0-7.1
    Alka 65

    I will not add anymore dichlor seeing that my CYA is 55. I will only use clorox from now on.
    I just added about a jug and a half of clorox ~150-160oz. per the math calc to bring FC to shock level of 20.

    Am I headed in the right direction? Do I needed to flock the pool for the cloudiness or just let the filter take care of it?
    Thanks in advance for the replies.
    Tommy
    12,000 gal Octagon vinyl in-ground pool. Hayward S220 sand filter 3/4 hp pump, heat pump heater

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    Charlie_R's Avatar
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    Re: Opening numbers....am I doing this right?

    Floc doesn't always work like you would expect it to.

    You should be running your pump 24/7, and keeping your FC at appropriate SLAM levels until you can pass the OCLT. Clear water is one of the parameters for passing this.

    Your filter will take care of the cloudiness, if you let it.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: Opening numbers....am I doing this right?

    Also another question.....does DPD powder go bad? I have a small container and its turning black. I bought a new one but would like to use the old one if I can.
    12,000 gal Octagon vinyl in-ground pool. Hayward S220 sand filter 3/4 hp pump, heat pump heater

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    Charlie_R's Avatar
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    Re: Opening numbers....am I doing this right?

    It still works. I bought my last refill just before end of season last year, and since I don't have a humidity controlled environment, it too is turning a bit dark. Still works just fine though.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: Opening numbers....am I doing this right?

    .does DPD powder go bad?
    The test for whether it is bad or not is easy enough.

    Assuming you have some chlorine in your pool, just put the powder (same quantity as always) in the test vial and stir/shake/spin. If it turns pink like it normally does, the powder is good.

    It really kills my refill sales to admit but it is most always good for the two seasons that covers the guaranty.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Opening numbers....am I doing this right?

    Thanks for the advice!
    12,000 gal Octagon vinyl in-ground pool. Hayward S220 sand filter 3/4 hp pump, heat pump heater

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    Re: Opening numbers....am I doing this right?

    Quote Originally Posted by tadcpht View Post
    I added 16oz of 3% copper algaecide
    Since you asked if you are doing this right....
    No, you did not need to add any copper to your pool.
    It can be a preventative but if I have read pool school properly it is not an effective algae killer.
    Copper can also cause staining and/or green hair issues.
    Just need to keep it in mind in case you have any issues in the future and to discontinue use.

    Copper Algaecides are not typically recommended around here.
    33,000 gal Inground Vinyl Liner
    Hayward Sand Filter
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    Smykowski's Avatar
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    Re: Opening numbers....am I doing this right?

    Quote Originally Posted by aldrichg9 View Post
    Copper Algaecides are not typically recommended around here.
    This.

    I haven't used an algaecide, of any kind, in the last two years.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    pwrstrk's Avatar
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    Re: Opening numbers....am I doing this right?

    I've never used an algaecide either. Keeping the FC in the proper range for the CYA level is all the algae preventer you need.
    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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    Re: Opening numbers....am I doing this right?

    2lbs of dichlor will add at most 13 ppm cya. It will also raise your fc 15ppm in your 9000 gal pool. What or who are you using to test your cya and your other levels. What percent chlorox?
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
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    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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