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Thread: Bi-Carb Startup Questions

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    Bi-Carb Startup Questions

    We started discussing this in my build thread, but I think this is a more appropriate place to discuss.

    My tap water (and water that I am filling pool with) tests like this:


    FC 1.0 (basic test kit 1.2)
    CC 0
    TC 1.0
    TA 290
    PH 7.2 (basic test kit)
    CH 325

    This appears to be perfect water for a Bi-Carb startup according to pool school list, without adding anything other than bleach initially. I would then start testing twice a day and add acid and bleach as needed to keep the ph down and the TA up?




    Cement Pond <--- build - 15K gal, 16 x 34 Rectangle, All Pentair - 520 Filter, 2 Intelliflo 2VST pumps (3hp) - 1 filter/1 water features, EasyTouch 8, Screen Logic, IC60 SWG,
    Pop-up Cleaners (Wet Deck and steps), 2 LED Bubblers, 3 LED 24" waterfalls, 5G LED Pool Light, Quartscapes Reflections Tahoe Blue plaster, Real Coral coping/deck, TF-100 Test Kit, 1766 Salt test kit.

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    Mod Squad jblizzle's Avatar
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    Re: Bi-Carb Startup Questions

    I would have to defer to others on helping with this, but is there a typo in your last sentence? bleach does not raise TA, baking soda does
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    Mod Squad pooldv's Avatar
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    Re: Bi-Carb Startup Questions

    Here is the definitive guide, A Bicarb Start-up guide for TFP members
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    JoyfulNoise's Avatar
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    Re: Bi-Carb Startup Questions

    Yes, it appears your fill water has excellent characteristics for a bicarb start up. Just be sure to keep a close eye on your pH. With water that has such a high TA and low pH, the pH will want to rise quickly. You may also want to get some baking soda on hand to help keep your TA stable as your acid additions to control pH will invariably lower TA in the process.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Bi-Carb Startup Questions

    Not to be a buttinski-- but definitely have whichever start up method you choose approved by finish applicator...

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    Mod Squad pooldv's Avatar
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    Re: Bi-Carb Startup Questions

    That is good advice.
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    Re: Bi-Carb Startup Questions

    Quote Originally Posted by pooldv View Post
    Here is the definitive guide, A Bicarb Start-up guide for TFP members
    I read it, but that process appears to be used in order to change the levels of your water, to what mine already is. so I do not need to adjust it as far as I can tell?

    - - - Updated - - -

    Quote Originally Posted by jblizzle View Post
    I would have to defer to others on helping with this, but is there a typo in your last sentence? bleach does not raise TA, baking soda does
    Yes, sorry.. I did write it correctly, but was two separate thoughts...lol.. I have a stream of conscious writing method.. :/

    - - - Updated - - -

    Quote Originally Posted by JoyfulNoise View Post
    Yes, it appears your fill water has excellent characteristics for a bicarb start up. Just be sure to keep a close eye on your pH. With water that has such a high TA and low pH, the pH will want to rise quickly. You may also want to get some baking soda on hand to help keep your TA stable as your acid additions to control pH will invariably lower TA in the process.
    THank you ... that's what I gathered... but also bleach to raise the Chlorine levels so no algae too right?

    - - - Updated - - -

    Quote Originally Posted by PoolguyinCT View Post
    Not to be a buttinski-- but definitely have whichever start up method you choose approved by finish applicator...
    For sure, thank you.
    Cement Pond <--- build - 15K gal, 16 x 34 Rectangle, All Pentair - 520 Filter, 2 Intelliflo 2VST pumps (3hp) - 1 filter/1 water features, EasyTouch 8, Screen Logic, IC60 SWG,
    Pop-up Cleaners (Wet Deck and steps), 2 LED Bubblers, 3 LED 24" waterfalls, 5G LED Pool Light, Quartscapes Reflections Tahoe Blue plaster, Real Coral coping/deck, TF-100 Test Kit, 1766 Salt test kit.

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    JoyfulNoise's Avatar
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    Re: Bi-Carb Startup Questions

    Careful with bleach on startup. You want to use the correct amount (along with CYA) but not too much to protect the plaster as it cures. My suggestion would be to use dichlor powder to get some FC in the water and then keep a puck floater with trichlor tabs in it to give you a constant sanitizer source.

    Now, before anyone freaks out about dichlor/trichlor/CYA-is-evil, the reason why I suggest this approach is because others way smarter than me about plaster have suggested it AND it keeps you from adding salt to your pool which you do not want to do. Bleach has salt in it, albeit in small quantities. Dichlor/trichlor will add about half as much salt as bleach does. Salt is bad for plaster in the first 30 days so keeping it low is a good thing. I'd add about 10ppm FC using dichlor (~ 24oz/10000gal) which will raise your CYA up to 9ppm and then just use trichlor tabs in a float to keep the FC up. You'll need to monitor your CYA a couple of times. In 10,000 gallons, three 8oz trichlor pucks will raise your CYA by about 10ppm and add a total of about 16ppm FC.

    FYI - all those numbers are from PoolMath....learn how to use it now before you need it later....
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Bi-Carb Startup Questions

    Quote Originally Posted by JoyfulNoise View Post
    Careful with bleach on startup. You want to use the correct amount (along with CYA) but not too much to protect the plaster as it cures. My suggestion would be to use dichlor powder to get some FC in the water and then keep a puck floater with trichlor tabs in it to give you a constant sanitizer source.

    Now, before anyone freaks out about dichlor/trichlor/CYA-is-evil, the reason why I suggest this approach is because others way smarter than me about plaster have suggested it AND it keeps you from adding salt to your pool which you do not want to do. Bleach has salt in it, albeit in small quantities. Dichlor/trichlor will add about half as much salt as bleach does. Salt is bad for plaster in the first 30 days so keeping it low is a good thing. I'd add about 10ppm FC using dichlor (~ 24oz/10000gal) which will raise your CYA up to 9ppm and then just use trichlor tabs in a float to keep the FC up. You'll need to monitor your CYA a couple of times. In 10,000 gallons, three 8oz trichlor pucks will raise your CYA by about 10ppm and add a total of about 16ppm FC.

    FYI - all those numbers are from PoolMath....learn how to use it now before you need it later....
    I just read through the JaimeP thread, I am going to stock up on Pucks and Acid..lol and a little bit of Baking soda. Also, they seem to use Jacks Pink, versus Magenta around here.. not sure the difference.

    What I didn't understand though is why the fluctuating 7.7 - 7.8 PH... the Baking Soda Startup says PH between 7.2 and 8.2.. so, why the variations? BDavis?

    Haha! I also just caught the bolded portion that says my water is fine to start with... after reading it three times... sheesh..
    Cement Pond <--- build - 15K gal, 16 x 34 Rectangle, All Pentair - 520 Filter, 2 Intelliflo 2VST pumps (3hp) - 1 filter/1 water features, EasyTouch 8, Screen Logic, IC60 SWG,
    Pop-up Cleaners (Wet Deck and steps), 2 LED Bubblers, 3 LED 24" waterfalls, 5G LED Pool Light, Quartscapes Reflections Tahoe Blue plaster, Real Coral coping/deck, TF-100 Test Kit, 1766 Salt test kit.

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    Mod Squad pooldv's Avatar
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    Re: Bi-Carb Startup Questions

    Jack's Magic The Pink Stuff is regular, The Blue Stuff is for fresh plaster and The Purple Stuff is for saltwater pools.
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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