Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: First test results with TF100

  1. Back To Top    #1

    Join Date
    May 2016
    Location
    Mobile, AL
    Posts
    24

    First test results with TF100

    My first TF100 kit arrived a couple days ago, and I managed to get some test results this evening. I've been adding a gallon of bleach (8.5%) for almost a week, except for the last two days I've been adding a gallon of 10% I picked up at Walmart. There are a few light green spots on the pool, so I know a proper SLAM is in order, but here it goes.

    TC 4.5
    PH 8
    FC 4
    CC .5 (it turned clear with 1 drop, so I went about the test. About 90 seconds later I noticed it had turned pink again. Not sure if that means anything)
    CH 875
    TA 100
    CYA 20 or higher (was close to filling the tube and could barely make out the black dot)

    My water is never really clear, which may be due to the CH being so high.

    What do you guys think I should do next? For now I'm just in the holding pattern by adding bleach nightly.
    Jason - Mobile, AL

    ~ 10 year-old 25,000 Gallon IG with Spillover Spa, Plaster, Hayward S244T sand filter, Hayward pump, Second pump for spa and blower, booster pump for Polaris
    Old Polaris control system, City Water system, non-working gas heater

  2. Back To Top    #2
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,495

    Re: First test results with TF100

    CH can cloud the water at high pH. What is the CH of your fill water? Will a drain/refill reduce it?

    No need in dumping a lot of stuff in the water to fix everything else if you have to Darin water to get the CH in line.

    Right now you need Muratic acid to get the pH down around 7.2

    Don't worry about the chlorine sample turning pink again, it always will if left to sit after the test.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  3. Back To Top    #3

    Join Date
    May 2016
    Location
    Mobile, AL
    Posts
    24

    Re: First test results with TF100

    I am going to retest everything this weekend and also test my city water supply. Still, the pool looks really good now. I added acid and got the PH where it needs to be. Simply added the bleach everyday is doing wonders on its own.


    Jason - Mobile, AL

    ~ 10 year-old 25,000 Gallon IG with Spillover Spa, Plaster, Hayward S244T sand filter, Hayward pump, Second pump for spa and blower, booster pump for Polaris
    Old Polaris control system, City Water system, non-working gas heater

  4. Back To Top    #4

    Join Date
    May 2016
    Location
    Mobile, AL
    Posts
    24

    Re: First test results with TF100

    So I retested and everything looks okay. CYA is still low, less than 20. I had the tube full before I could not distinguish the dot. I have a big tub of 3" Trichlor tabs from Home Depot. Are those safe to use to get my CYA up, or should I just go buy some stabilizer from the pool store?

    What alarms me is the CH. In this test I got 1225. Very different from last week, so I have to feel that I'm going at it too fast and not giving the reagents time to work. Is this common with the CH test?

    Full numbers:
    PH 7.7
    FC 3
    CC 0.5
    CH 1225
    TA 90
    CYA <20
    Jason - Mobile, AL

    ~ 10 year-old 25,000 Gallon IG with Spillover Spa, Plaster, Hayward S244T sand filter, Hayward pump, Second pump for spa and blower, booster pump for Polaris
    Old Polaris control system, City Water system, non-working gas heater

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •