Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: Pool Store vs. TFTestkit - testing the testers

  1. Back To Top    #1
    viking68's Avatar
    Join Date
    May 2010
    Location
    Lake Mary, FL
    Posts
    68

    Pool Store vs. TFTestkit - testing the testers

    Had to pick up some chlorine yesterday, so I tested the testers.

    They had just tested someone else's water - no rinsing of test tubes - just "dump 'em and on to the next" (me).

    I had tested just before leaving home - store is 1 mile away - same EXACT water sample:

    TFTestkits Pool Store

    Cl - 9.5 5.0 (they don't/won't do a drop test) (am coming down from a SLAM)

    pH - 7.5 8.0

    TA - 80 120

    CH - 300 380

    CYA - 40 40 (yeah - they got ONE right!)

    So, if anybody needed any more proof of how our method works - here's a classic example. My water is sparkly crystal clear.

    Of course, they offered to check for phosphates (declined) and did give me a TDS of 1600 - because, well, it's important --- NOT!

    On a side note, my chlorine was being eaten up a a pretty prodigious rate - 2-3ppm/24 hours a week ago. Discovered the culprit - dang Polaris Bag! Pulled it out and soaked in chlorine for 24 hours - now the ONCLT - less than .5 ppm overnight with .75" of rain! Happy camper.

    Have a great Sunday everyone!
    16K gal, IG Free-Form Plaster (1986), 1 HP Pentair Superflo pump, PAC FAB FNS-36 DE Filter, Polaris 280, Screened, Cool Deck.
    Solar Heater
    TF-100 Test Kit

  2. Back To Top    #2

    Join Date
    May 2016
    Location
    MD
    Posts
    195

    Re: Pool Store vs. TFTestkit - testing the testers

    I finally have time tomorrow to go return the stuff they sold me over winter on their "special" sale days...

    I am not even bringing water to test... Don't want to bother anymore as I know the numbers will be wrong. I would bet 100 bucks my TA with them will be 40 or 50 so they will try to sell me expensive baking soda.

    I will just say, half the season is over... I haven't needed any of this, Id like to return it. Should be 200 or 250 back

    See what they say, and do...
    Last edited by tim5055; 07-10-2016 at 12:01 PM. Reason: Language
    IG, 25k gallons, 20x40 ft, Plaster, Pentair sand filter, variable speed pump, have a well, TF-100 test kit, Speed Stir

  3. Back To Top    #3
    Susiejax's Avatar
    Join Date
    May 2016
    Location
    Fort Wayne, Indiana
    Posts
    37

    Re: Pool Store vs. TFTestkit - testing the testers

    Thanks for the side by side compare, Viking! I've been wanting to do that myself for a while. But I REALLY don't want to go to the pool store...
    22,400 gal; in-ground gunite rectangle, vinyl liner; 3.5'-8' depth; Chlorine; auto cover; Hayward Pump and Sand Filter; Hayward Electric Heatpro; diving board; 3 sidewall fountains; open mid May thru mid October; built 2011; Taylor K-2006C FAS-DPD Test Kit

  4. Back To Top    #4
    viking68's Avatar
    Join Date
    May 2010
    Location
    Lake Mary, FL
    Posts
    68

    Re: Pool Store vs. TFTestkit - testing the testers

    Quote Originally Posted by Susiejax View Post
    Thanks for the side by side compare, Viking! I've been wanting to do that myself for a while. But I REALLY don't want to go to the pool store...
    Only reason I do (go to pool store) is because it's FL and there are several stores within a couple miles of my house. 12.5 chlorine is literally available cheaper @ pool stores than anywhere else - just saw 3 gallon pack of Clorox @ BJ's for 9.91. Ridiculous. I pay $4 for 2.5 gallons. Sure, I had to pay the "deposit" on the jugs, but that was so long ago I cannot even remember how much that was - years.
    16K gal, IG Free-Form Plaster (1986), 1 HP Pentair Superflo pump, PAC FAB FNS-36 DE Filter, Polaris 280, Screened, Cool Deck.
    Solar Heater
    TF-100 Test Kit

  5. Back To Top    #5
    Messman750's Avatar
    Join Date
    Jun 2015
    Location
    Groton New York
    Posts
    34

    Re: Pool Store vs. TFTestkit - testing the testers

    The only thing I buy at pool store is the liquid chlorine.
    13.00 for 5 gallons 12.5%. I'm fine with it.
    32x16 inground chlorine. 23000 gallon with diving board
    vinyl liner 1hp hayward super pump. Waterway sand filter new in 2014.
    maytronics dolphin m200 robot. I live in central NY.
    TF100 kit Taylor speedstir. Sonos audio

  6. Back To Top    #6

    Join Date
    May 2016
    Location
    San Antonio
    Posts
    3

    Re: Pool Store vs. TFTestkit - testing the testers

    Oh man, light bulb moment! I really should empty that Polaris bag, I bet that is where a lot of the chlorine loss is going!

  7. Back To Top    #7
    viking68's Avatar
    Join Date
    May 2010
    Location
    Lake Mary, FL
    Posts
    68

    Re: Pool Store vs. TFTestkit - testing the testers

    Quote Originally Posted by Devlyyn View Post
    Oh man, light bulb moment! I really should empty that Polaris bag, I bet that is where a lot of the chlorine loss is going!
    Not only empty it, soak it like I did - full strength chlorine. So what if it shortens bag life; should replace is once a year anyhoo.

    After monitoring the pool since, I know that's where the little buggers were hiding - killed 'em dead!
    16K gal, IG Free-Form Plaster (1986), 1 HP Pentair Superflo pump, PAC FAB FNS-36 DE Filter, Polaris 280, Screened, Cool Deck.
    Solar Heater
    TF-100 Test Kit

  8. Back To Top    #8

    Join Date
    May 2016
    Location
    Troy IL
    Posts
    465

    Re: Pool Store vs. TFTestkit - testing the testers

    Quote Originally Posted by viking68 View Post
    Not only empty it, soak it like I did - full strength chlorine. So what if it shortens bag life; should replace is once a year anyhoo.

    After monitoring the pool since, I know that's where the little buggers were hiding - killed 'em dead!
    I just used Pool Math to determine that 1/2 tsp of 10% liquid chlorine in 1 gallon of water would give you 30ppm chlorine. That should be more than enough to get rid of anything living in there, and be quite a bit more gentle on your equipment bag.

    Just a thought.

    17,500 gallon IG Vinyl
    Pentair Tagelus TA60D Sand filter
    Pentair Challenger 1.5HP pump CFII N1 1.5A
    Taylor K-2006-A, Stenner 45MPHP10 auto chlorine feed

  9. Back To Top    #9

    Join Date
    Jul 2015
    Location
    Naperville/Illinois
    Posts
    18

    Re: Pool Store vs. TFTestkit - testing the testers

    Quote Originally Posted by camueller View Post
    I just used Pool Math to determine that 1/2 tsp of 10% liquid chlorine in 1 gallon of water would give you 30ppm chlorine. That should be more than enough to get rid of anything living in there, and be quite a bit more gentle on your equipment bag.

    Just a thought.
    I did the Pool Math for 1 gal pool size and added 1 oz. 10% bleach; result was FC 781; divide it by 12 (1oz = 2 Tablespoons = 6 teaspoons = 12 one half teaspoons) = 65 ppm. So for 32 ppm in 1 gal water, it only needs 1/4 teaspoon 10% chlorine unless I am calculating it wrong.

Posting Permissions

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