Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 14 of 14

Thread: First time use of TFTest Kit (almost)

  1. Back To Top    #1

    Join Date
    Jul 2013
    Location
    North Western Wisconsin
    Posts
    26

    First time use of TFTest Kit (almost)

    Test TFtest kit arrived, except for the red-capped testing bottle, so I don't have all the numbers. My replacement Tcell also arrived and I have it installed - seems to be running fine, as the the indicator lights on the box state that it is generating and there has been an increase in the display number on the box.

    Here are the numbers I do have...

    FC - 2
    TC 2.5
    Alkaline - 120
    Ph - 7.8 (this is a morning sample - might this number be different in the evening?
    CH 240
    water is clear but not sparkly

    Readout on SWG is currently at 2900 - an increase of 100 since yesterday - however, despite thoroughly sweeping the walls and floor yesterday, there is a return of algae (what I believe to be so) on the bottom of the pool.
    I know the chlorine is low, will getting the number up kill off the algae? I do have bleach on hand yet, can I safely add this even though the SWG is operating?

    Thanks! I appreciate any/all advice.

    Edit: Found test bottle. CYA - didn't even register. Followed directions and was still able to see dot with cylinder completely full.

    22000 gallons, vinyl above ground, SWG, sand filter
    Above ground, vinyl 22000, STA-RITE sand filter, swg, upper midwest - in PROCESS of replacing with in-ground - vinyl...

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: First time use of TFTest Kit (almost)

    You won't have any CYA unless you added it somehow, either by pure stabilizer, dichlor, trichlor, or some multipurpose one-chemical-does-it-all gimmicky pool product.

    So...if you haven't added any of the above, you should do so. The SWG won't be able to keep up with the demand from the sunlight degradation, let alone the bather load.

    You pH will likely be higher tonight or tomorrow night. It's just the nature of things. However, adding stabilizer will lower it a little bit, so you get a two-fer!
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  3. Back To Top    #3

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,671

    Re: First time use of TFTest Kit (almost)

    If you have not put in stabilizer then I suggest to add 5 pounds to raise the CYA to 30 ppm. This will protect the chlorine from the sun. Then you need to do the SLAM process, pool-school/shocking_your_pool to get rid of the algae.

    After you have finished SLAMing the pool, raise the CYA to 70 ppm and follow the recommended levels for a SWG pool, pool-school/recommended_levels. It will be easier to SLAM the pool with the CYA at 30 compared to zero or 70.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  4. Back To Top    #4

    Join Date
    Jul 2013
    Location
    North Western Wisconsin
    Posts
    26

    Re: First time use of TFTest Kit (almost)

    Sorry for my ignorance, but I need some clarification...

    The label on the stabilizer states in can be sprinkled throughout the pool or put directly in the skimmer - since we're talking 5 pounds I'm assuming sprinkling would be best opposed to hanging in a sock, etc. as read elsewhere on the board?

    Slamming - is it ok to use the liquid bleach with the SWG ?

    Thanks!
    Above ground, vinyl 22000, STA-RITE sand filter, swg, upper midwest - in PROCESS of replacing with in-ground - vinyl...

  5. Back To Top    #5
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: First time use of TFTest Kit (almost)

    Hang it in a couple of socks if you need to. Since it's a mild acid you don't want it laying on the liner. It can damage it.

    It's not only ok to use bleach it's preferred. And the swg won't care at all.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  6. Back To Top    #6
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: First time use of TFTest Kit (almost)

    Quote Originally Posted by what next
    Sorry for my ignorance, but I need some clarification...

    The label on the stabilizer states in can be sprinkled throughout the pool or put directly in the skimmer - since we're talking 5 pounds I'm assuming sprinkling would be best opposed to hanging in a sock, etc. as read elsewhere on the board?

    Slamming - is it ok to use the liquid bleach with the SWG ?

    Thanks!
    You can sprinkle it in if you want a bleached liner. You can pour it in the skimmer and hope it doesn't clump up and clog pipes. Also pray that when the stuff gets concentrated in the filter that the acidic pH doesn't dissolve seals or metal parts. And hope you don't need to backwash before it's fully dissolved, either, or it'll go right out the waste line. Money wasted.

    You need to decide RIGHT NOW if you're going to believe the pool store and the manufacturers and follow their instructions for pool chemistry, or do things the BBB way. The instructions for SLAM specifies
    If you have a salt water chlorine generator, chlorine tablet dispenser, injection pump, or Liquidator, you will still need to use another chlorine source for SLAMing. All of these devices are designed to add chlorine slowly and steadily over many hours. To kill algae or lower CC, you need to put in lots of chlorine all at once. The SWG, tablet dispenser, injection pump, or Liquidator can be very helpful in the follow up stages to maintain FC at shock level, but for the initial couple of chlorine applications, you need to use another chlorine source.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  7. Back To Top    #7
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: First time use of TFTest Kit (almost)

    To add to what Richard quoted, it is usually recommended to just turn the SWG off during the SLAM process so that you can get a better feel for the FC consumption.

    So, get the CYA up to at least 30ppm ... SLAM it ... pass the 3 criteria to stop ... raise the CYA up more ... dial in the SWG.
    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
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  8. Back To Top    #8

    Join Date
    Jul 2013
    Location
    North Western Wisconsin
    Posts
    26

    Re: First time use of TFTest Kit (almost)

    OK - I put in the 5# of stabilizer, using nylons. Slammed the pool to a FC level of 13 (was aiming for 12 according to the chart, guessing too much of the bleach). Brushed the pool again - however, the stuff on the bottom returned - I'm second guessing whether it is actually algae; it does not feel slimy or squishy it simply dissipates, within a short time seems to resettle again, especially into the crevices of the pool bottom. Could this be something else?
    Will test once more tonight when sun is down and again in the morning and post result. If I'm understanding correctly, the CYA wont be up for a few days, so I should wait on testing it, or should I check it tomorrow?
    Thanks!
    Above ground, vinyl 22000, STA-RITE sand filter, swg, upper midwest - in PROCESS of replacing with in-ground - vinyl...

  9. Back To Top    #9
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: First time use of TFTest Kit (almost)

    It could be dead algae that is continually bing killed. An OCLT will tell you if there is something still living in the pool.

    Assume the CYA is at your target, but you need to wait a week to test and verify.
    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
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  10. Back To Top    #10
    techguy's Avatar
    Join Date
    Jul 2010
    Location
    Antelope, CA
    Posts
    2,687

    Re: First time use of TFTest Kit (almost)

    If it sinks, you can use a vacuum to vacuum it to waste and skip waiting to filter, assuming your water is clean and cost effective.

    As to manufacturers instructions,I feel that in general they ASSUME you have a plaster pool, with perfect water and have perfectly balanced water before you add whatever product you are adding. If I had perfectly balanced water, I would not need your product.

    I have followed manufacturers instructions in the past and it ruined my liner. I have since replaced my liner and now follow the recommendations here. ALL of the recommendations here are focused on what is best and safest for your pool, it's construction and your equipment.

    If you have a question about how to do something, come here and someone will help you.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

  11. Back To Top    #11

    Join Date
    Jul 2013
    Location
    North Western Wisconsin
    Posts
    26

    Re: First time use of TFTest Kit (almost)

    To each of you, thanks for the help - very much appreciated - and the saga continues....
    I did SLAM yesterday, took final test results after sunset.
    Tested again this a.m. - no direct sun yet:

    FC 13 (same as last night's result)
    CC .5
    TC 13.5
    Ph 7.5
    Alk 100
    Calcium 260 (not sure I was 'blue enough' yesterday, recorded 240 then)

    given these numbers, if I understand correctly, nothing is living in the pool, and I do not need to SLAM anymore; turn SWG back on and try to increase the CYA to 70 (5#of stabilizer was put in yesterday, in nylons, is dissolved - I'm assuming this raised the CYA to 30).

    I still have the 'stuff' at the bottom of the pool. I did find on another post reference to pollen, dirt, etc. Perhaps this is what is on the bottom? It almost seems powdery. Will try to reconnect the polaris vacuum and see if it can resolve the problem.

    Should I wait for the chlorine level to go down before raising the CYA to 70? -

    Haven't spoken to any 'pool store' people, and going forward, reading of product labels will be solely to ascertain the contents and percentages in the product!
    Above ground, vinyl 22000, STA-RITE sand filter, swg, upper midwest - in PROCESS of replacing with in-ground - vinyl...

  12. Back To Top    #12
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: First time use of TFTest Kit (almost)

    Quote Originally Posted by what next
    Haven't spoken to any 'pool store' people, and going forward, reading of product labels will be solely to ascertain the contents and percentages in the product!
    And that, my friends, is what it's all about!
    Knowing what you put in your pool and why!

    Personally I would run the OCLT again tonight. Especially given that you have .5 CC's.

    Technically if there's stuff still in your water, you should remain at shock level. Part of the criteria for stopping the SLAM process is that your water is clear.

    You can go ahead and raise the CYA if you want.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  13. Back To Top    #13

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,084

    Re: First time use of TFTest Kit (almost)

    Yeah, vacuum or brush that stuff on the bottom. If it proves difficult to vacuum, brush it up into the pool water, pump running, to expose it to that high chlorine and hopefully get more of it to filter out.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  14. Back To Top    #14
    techguy's Avatar
    Join Date
    Jul 2010
    Location
    Antelope, CA
    Posts
    2,687

    Re: First time use of TFTest Kit (almost)

    I would wait until you are done with slamming before moving your CYA levels
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

Posting Permissions

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