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Thread: Need some advice please ...

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    Seanhan's Avatar
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    Need some advice please ...

    I just got my tf-100 today !!!

    30,000 gallon gunite pool that has been glassed by fibertech.
    Swg
    72 sq ft de filter
    2hp pump

    Ph = 7.5
    Cya = 110
    Free clorine= 10
    Cc= .5
    Tc=10.5
    Ta=200
    Calcium=200
    Salt = 3800
    Clorine 5+

    My ta is too high should i add acid ??? How much ???
    Sean Hannon
    30,000 Gallons gunite pool Coated by Fibertech
    Hayward Pro Grid 72 / Hayward multiport
    Circupool V3 VS pump
    CirCupool SWG RJ 60, 400.000 btu raypak , Built in SPA

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    Richard320's Avatar
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    Re: Need some advice please ...

    Quote Originally Posted by Seanhan
    I just got my tf-100 today !!!

    30,000 gallon gunite pool that has been glassed by fibertech.
    Swg
    72 sq ft de filter
    2hp pump

    Ph = 7.5
    Cya = 110
    Free clorine= 10
    Cc= .5
    Tc=10.5
    Ta=200
    Calcium=200
    Salt = 3800
    Clorine 5+

    My ta is too high should i add acid ??? How much ???
    First, a tip: when you do the FAS-DPD (powder) test for Chlorine, you don't need to do the color matching test. Unless you want to see how good you are at guessing FC based on subtle shades of color. I discovered anything between 4 and 7 looks like 5 to me. But before I get carried away....

    Your CYA is too high. If you think it's 110, it's probably closer to 150. The scale is loagrithmic - you might notice that as the numbers increase, the spacing gets smaller. The way to get a better idea of CYA is to use one of the cylinders to mix half pool water and half tap water, then pour that diluted sample into the mixing bottle with the R-0013. Take a reading, pour it back in the mixing bottle, repeat several times until you're pretty sure of yourself. Then double that reading.

    High CYA in itself is not a huge problem, but if you develop algae, it will be. In that case you will need to use barrels full of bleach to wipe it out. Also, you won't use more chlorine, but you'll need to maintain much higher levels for it to be effective, which means you'll need to use the FAS-DPD test every time. I managed with higher CYA my first season due to water restrictions, so I know it can be done. But I don't recommend it. So consider draining and refilling some of it.

    TA will come down by itself if you maintain pH. If you want to speed the process, here's how. Note: you'll end up using the same amount of acid to do it, it just speeds it up.
    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!

  3. Back To Top    #3
    Mod Squad woodyp's Avatar
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    Re: Need some advice please ...

    And please clarify your chlorine #'s.

    FC + CC = TC (total chlorine)
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    Mod Squad jblizzle's Avatar
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    Re: Need some advice please ...

    Quote Originally Posted by woodyp
    And please clarify your chlorine #'s.

    FC + CC = TC (total chlorine)
    That is what their numbers do ???
    Jason, TFP Moderator
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    Seanhan's Avatar
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    Re: Need some advice please ...

    FC= 10
    CC=.5
    TC= 10.5
    Sean Hannon
    30,000 Gallons gunite pool Coated by Fibertech
    Hayward Pro Grid 72 / Hayward multiport
    Circupool V3 VS pump
    CirCupool SWG RJ 60, 400.000 btu raypak , Built in SPA

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    Mod Squad woodyp's Avatar
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    Re: Need some advice please ...

    It's that chlorine at the bottom of 5+ that got me. My bad!
    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
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    Seanhan's Avatar
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    Re: Need some advice please ...

    The 5+ was just from the little taylor test kit with the compaireter sample
    Sean Hannon
    30,000 Gallons gunite pool Coated by Fibertech
    Hayward Pro Grid 72 / Hayward multiport
    Circupool V3 VS pump
    CirCupool SWG RJ 60, 400.000 btu raypak , Built in SPA

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    Seanhan's Avatar
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    Re: Need some advice please ...

    Last month i had quite a bit of metal staining
    I put in a 5 lbs bag of absorbic acid
    The pool was like new in a hour
    I added the correct dose of " in the swim brand stain remover "
    Then filtered for 24/7. 3-4 days
    Then i disassebbled the filter, and cleaned it and added new D.E.
    Got the P.H. Correct ....

    Then we added a salt system ,the say day i noticed my clorine was low so i added about 3-4lbs
    Of shock that i had left over and the next day about 50% of the stains were bach.

    Can i use absorbic acid with a SWG ???
    Also i ordeded 4 bottles of jacks magic purple .. Did i waste my money ?
    Thanks for any advice ..
    Sean Hannon
    30,000 Gallons gunite pool Coated by Fibertech
    Hayward Pro Grid 72 / Hayward multiport
    Circupool V3 VS pump
    CirCupool SWG RJ 60, 400.000 btu raypak , Built in SPA

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    JasonLion's Avatar
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    Re: Need some advice please ...

    Ascorbic acid (and the stain remover) removes the metals from the pool surface and puts them back in the water. Once you do that you need to use sequestrant to bind to the metals and hold them in solution or they will just form stains again.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Seanhan's Avatar
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    Re: Need some advice please ...

    Then you have to keep adding sequestrant forever ?

    Or change the water ?

    Is the jacks purple a sequestrant ?
    Sean Hannon
    30,000 Gallons gunite pool Coated by Fibertech
    Hayward Pro Grid 72 / Hayward multiport
    Circupool V3 VS pump
    CirCupool SWG RJ 60, 400.000 btu raypak , Built in SPA

  11. Back To Top    #11
    linen's Avatar
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    Re: Need some advice please ...

    Quote Originally Posted by Seanhan
    Then you have to keep adding sequestrant forever ?
    Generally, yes you have to add maintenance doses regularly.

    Quote Originally Posted by Seanhan
    Or change the water ?
    Yes, this is a good solution if it is affordable (in the short term) for you and you do not have a high water table that could push your pool up when close to empty.

    Quote Originally Posted by Seanhan
    Is the jacks purple a sequestrant ?
    Yes that is one of the recommended ones. See: http://www.troublefreepool.com/pool-...metal%20stains
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Seanhan's Avatar
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    Re: Need some advice please ...

    Yea thats what i did wrong " no maintanice dose "
    And too much shock !!!
    Just ordered another 5 lbs Absorbic , and 4 bottles of purple stuff.
    The guy at jacks said i may only need the maintance dose for a few weeks ?? I hope soo that stufs kinda high $
    Thanks for your help !!!!
    Sean Hannon
    30,000 Gallons gunite pool Coated by Fibertech
    Hayward Pro Grid 72 / Hayward multiport
    Circupool V3 VS pump
    CirCupool SWG RJ 60, 400.000 btu raypak , Built in SPA

  13. Back To Top    #13
    Seanhan's Avatar
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    Re: Need some advice please ...

    Does anybody know what the advanteges are ???



    There are some advantages to running the SWG during the day while the sun is shining on the pool. Unless there is some other reason not to run the pump during the day, like time of day electric rates that are higher during the day, program the pump to run while the sun is shining on the pool.
    Sean Hannon
    30,000 Gallons gunite pool Coated by Fibertech
    Hayward Pro Grid 72 / Hayward multiport
    Circupool V3 VS pump
    CirCupool SWG RJ 60, 400.000 btu raypak , Built in SPA

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