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Thread: Best Pool Chemistry Software or Application

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    Chad628's Avatar
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    Best Pool Chemistry Software or Application

    Would the TroubleFreePool.com suggested goal levels in the pool calculator be appropriate for a 400 gallon hot tub?
    Petaluma, CA., 11K gallon IG pool, white plaster, Nautilus FNS 36 sq. ft. DE Filter, Jandy 1.5 HP variable speed E pump, Pentair Booster Pump with Polaris Vac-Sweep 280 pool cleaner, Jandy Laars LX Pool Heater, Remodeled (new plumbing, plaster, tile, coping, variable speed pump) January 2013. 400 gallon Artesian Island Spa (Ozonator/Chlorine), TF-100 test kit, SpeedStir.

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    linen's Avatar
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    Re: Best Pool Chemistry Software or Application

    Welcome to tfp, Chad628

    In terms of calculating doses I use poolcalculator.com for my hot tub (420 gallons) as well as my pool (11000 gallons). In terms of goal levels, you can use the "Traditional Spa" settings in the "Suggested Goal Levels" section of the poolcalculator.
    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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    Mod Squad jblizzle's Avatar
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    Re: Best Pool Chemistry Software or Application

    Welcome to TFP!!!

    Generall yes. Have you seen the Spa forum ... here is a related sticky:
    how-do-i-use-chlorine-in-my-spa-or-pool-t10095.html
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    Chad628's Avatar
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    Re: Best Pool Chemistry Software or Application

    Based on what I have been reading in the spa forum it seems like it would be helpful if the pool calculator had an additional set of suggested TroubleFreePool.com goal levels for spas. It seems the recommended chemical levels for spas by the TroubleFreePool.com website are a bit different from traditional spas. Chem Geek has strongly recommended Borates at 50 and TA at 50. It would be nice to see that reflected in the suggested goal levels in the pool calculator. There does not seem to be a consensus as to what should be a suggested goal for calcium hardness. I have seen different numbers recommended here and am still confused about that.
    Petaluma, CA., 11K gallon IG pool, white plaster, Nautilus FNS 36 sq. ft. DE Filter, Jandy 1.5 HP variable speed E pump, Pentair Booster Pump with Polaris Vac-Sweep 280 pool cleaner, Jandy Laars LX Pool Heater, Remodeled (new plumbing, plaster, tile, coping, variable speed pump) January 2013. 400 gallon Artesian Island Spa (Ozonator/Chlorine), TF-100 test kit, SpeedStir.

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    linen's Avatar
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    Re: Best Pool Chemistry Software or Application

    That would be nice, but unfortunately JasonLion, who created it, not longer owns the rights. It sounds like you are on top of the chemistry, so maybe you don't need it? In my case from my very early usage I didn't even choose a suggested goal level category when I used the poolcalculator since i knew from reading what I wanted for targets.

    In terms of CH, you don't want it too high since that can cause scaling on the heater. Generally having it low is not a problem unless your tub surface is fiberglass and then you just need it above 100 ppm. Also, sometimes foaming can be eliminated with some additional CH (100-150 ppm). What is your tub surface? What is your CH?
    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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    Chad628's Avatar
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    Re: Best Pool Chemistry Software or Application

    My hot tub shell is fiberglass with an acrylic finish on top. My CH levels are 130 ppm. I think I am on top of the chemistry thanks to Chem Geeks advice. He pointed out to me that the chlorine levels don't have to be as high in a hot tub because the risk of algae is low due to the fact that it is covered and not exposed to a lot of sunlight. It seems to me that the CYA/Chlorine chart does not have to be as strictly adhered to for hot tubs for that reason.
    Petaluma, CA., 11K gallon IG pool, white plaster, Nautilus FNS 36 sq. ft. DE Filter, Jandy 1.5 HP variable speed E pump, Pentair Booster Pump with Polaris Vac-Sweep 280 pool cleaner, Jandy Laars LX Pool Heater, Remodeled (new plumbing, plaster, tile, coping, variable speed pump) January 2013. 400 gallon Artesian Island Spa (Ozonator/Chlorine), TF-100 test kit, SpeedStir.

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    Re: Best Pool Chemistry Software or Application

    Yes, your understanding is correct, but the only reason for allowing the lower FC relative to CYA (which is already low at 30-40 ppm) is that most people don't like noticing the chlorine during their soak which is much more noticeable due to the higher temperatures and generally lots of aeration. So it's pushing the boundaries to have one start the soak with a lower roughly 2 ppm FC, but it's OK since the spa is generally covered most of the time and since one blasts with more chlorine right after the soak which is generally not more than an hour or so. If one has strangers over and wants more safety from person-to-person transmission of disease, then a higher FC would be needed so that it lasts through the soak time. If one has the lower amount of chlorine at the start of the soak, then it combines with ammonia in sweat to form monochloramine so bacteria are still prevented from reproducing, but kill times are slower.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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