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Thread: TF100 arrived today - results

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    TF100 arrived today - results

    We just moved into a new house which has an IG pool (installed 2006). The water is nice and clear, but my wife has stated it has a funny taste.
    I found this site before we closed on the house, as I wanted to be educated on the correct way to maintain a pool. I have read the pool school a number of times and have been browsing the forums every day.
    I ordered the TF100 earlier this week and it arrived today. I performed each test twice to make sure my results are accurate.

    pH = (more yellow than 6.8 on the color scale)
    CYA = 90
    FC = 10.5
    CC = .5
    CH = 180
    TA = 0 (water turns pink when I add R-0008)

    From what I've been reading in the forums, I should deal with the low pH first. I entered a pH of 6.6 in the pool calculator and it states I should Add 33 oz by weight or 29 oz by volume of washing soda or soda ash
    or add 66 oz by weight or 64 oz by volume of borax.

    Which should I use: washing soda or borax?.

    The previous owner has been using 3" Trichlor tablets in the chlorine feeder and HTH Shock N Swim (Cal Hypo) every week. I am going to start using the BBB method as of today.

    Thanks for such a great site!
    30K gallon free form vinyl IG pool with waterfall
    Hayward DE3620, Pentair Superflo 1.5 HP
    Dolphin Nautilus
    4 returns, 2 skimmers, 1 bottom drain
    1.5 inch plumbing

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    Re: TF100 arrived today - results

    Soda vs. Borax is up to you, how much you want to add to the pool. I prefer Borax, but I like borates in my pool. BUT, before you go too much farther, your CYA of 90 is high. The tablets are why, of course. I recommend draining and refilling to get that CYA down to a manageable number before you do too much else. There is no reason to add chems then just drain them on the ground.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    Re: TF100 arrived today - results

    1. address your very high CYA first. I would suggest you drain about 50% of the pool to get your CYA down to a manageable 40-50

    2. Once that's done, retest pH and TA as they will have changed considerably then post those results.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: TF100 arrived today - results

    Thanks for the quick replies!

    My water is from a well and is a little high in iron. Is it OK to refill with this well water?
    30K gallon free form vinyl IG pool with waterfall
    Hayward DE3620, Pentair Superflo 1.5 HP
    Dolphin Nautilus
    4 returns, 2 skimmers, 1 bottom drain
    1.5 inch plumbing

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    Re: TF100 arrived today - results

    People do it every day but, IMO, it is one of the worst things you can do to your pool. Iron above .3ppm in the well will cause you pool chemistry problems the rest of your life.....it will never come out but can only be kept in suspension through the use of sequestrants.

    I would sure price hauling in water or some other alternative. At least test the well to see how concentrated it is.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: TF100 arrived today - results

    A water test was performed (as it was required by the state), and the iron content is 4.68 mg/l.

    The pH is 6.72

    Is it very expensive to have 15,000 gallons hauled in by truck?
    30K gallon free form vinyl IG pool with waterfall
    Hayward DE3620, Pentair Superflo 1.5 HP
    Dolphin Nautilus
    4 returns, 2 skimmers, 1 bottom drain
    1.5 inch plumbing

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    Mod Squad jblizzle's Avatar
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    Re: TF100 arrived today - results

    Quote Originally Posted by Doug73
    A water test was performed (as it was required by the state), and the iron content is 4.68 mg/l.

    The pH is 6.72

    Is it very expensive to have 15,000 gallons hauled in by truck?
    Well, that is pretty high iron content, so will require a lot of chemicals continuously to keep it in suspension which = $. So, you have to decided if trucking it in is too expensive knowing you will need chemicals if you do not.

    Best to price it out and find out what the water would cost.
    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
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