Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 8 of 8

Thread: Ok, so pretty much brand new.

  1. Back To Top    #1

    Ok, so pretty much brand new.

    Ok, so my family has had this pool for awhile and my dad has just been putting random amounts of chlorine in it to keep the algae at bay. He brought home a test kit and I've been messing with it as a hobby.

    This thing is the kit:
    http://www.lesliespool.com/browse/Home/ ... 00/I/18547

    Test results show: (If I'm reading it right)
    0.5 ppm FC
    0.5 ppm TC (same color as the drops I add so I dont know how reliable these chlorine numbers are.)
    <6.8 pH
    0-10ppm AT

    These are the only 4 tests included in my kit. I hope they are enough to get me started.

    Other information:
    The pool is about 5000 gallons and the chart says to add 1.5 lbs of soda ash to raise the pH. I have done that 3 days in a row to no avail. Keep doin it?

    The water is not green, it's not particularly cloudy, but it does hurt the eyes.

    Reading the directions on the tabs my dad was using for chlorine it says to add one tab a week for every 10000 gallons of water, and it's a 5000 gallon pool. He has 6 tabs in the pool at once... and the FC reading is 0.5. I'm confused.
    20k gal, IG Vinyl, IntelliFlo VF Pump, 60 GPM sand filter, 2 skimmers, one main drain, two returns, Dolphin Diagnostic cleaning robot, Taylor K-2006 test kit

  2. Back To Top    #2
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,963

    Re: Ok, so pretty much brand new.

    Hi and Welcome.

    Even though the water is clear, there are organics present that are consuming the chlorine as soon as it is added, which is why you are not seeing adequate levels from the tablets. Have you added any chlorine from any other source other than tablets?

    When you say "had this pool for awhile" - how long? Have all 6 tablets dissolved? How many times has he put in 6 tablets? If we can determine how many tablets have been added, we can guestimate the CYA level. In order to properly shock the pool, you need to know your CYA levels. Do you have any idea how high your CYA/stabilizer might be? Do you have anyway you can test the CYA?

    You have an o.k. kit, it's not ideal but we can make it work for now.

    A side effect of the tablets is they are acidic and they lower PH and TA, and if the water was low on these levels to start with, thus the problem you are seeing now.

    Your 10ppm AT I think you mean TA. This is too low and when it's that low, you will have problems with PH.

    Here's what I suggest for your pool situation:

    Today, if possible (given the Holiday) go pick up Baking Soda and Borax. You need 7 lbs of Baking Soda. Predissolve it in a bucket of pool water and pour it in front of the return flow, brush the pool, let the pump run for an hour and then add 1 and 1/2 cups of Borax, same method. Brush, let that run for another hour. You should be able to find both Baking Soda and Borax at the local grocery stores, there must be one open today.

    Then pour in one small jug of 6% bleach. This should raise your FC to 10. Wait an hour after adding the bleach and test for chlorine. When you do your chlorine test, take the water sample in a cup, dilute the sample with a 50/50 mix of pool water and unchlorinated water (does your tap water have chlorine? otherwise use distilled water) and you can test up to 10 FC.

    If your pool doesn't show 10 FC after this bleach has been added, if it shows .5 or that low again, add another jug. (YOu should buy 4-5 jugs for today.)

    In the meantime, you need to read Pool School - How to Shock Your Pool, and Defeating Algae.

    You need to learn how to use the Pool Calculator, this tells you how much bleach to add, and the other chems I mentioned. Instructions for using the Pool Calc are in Pool School.

    So today fix the PH/TA. Find out your CYA level, and add bleach until a FC of 10 holds overnight and the water is clear. If your CYA level is higher (right now I have no idea how high it could be) your shock level could be higher than 10. But you can safely dose up to 10 FC without knowing the CYA level.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  3. Back To Top    #3
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,963

    Re: Ok, so pretty much brand new.

    Oh BTW, please put your pool info in your signature. Go to User Control Panel (top left), then Profile, then Signature. Is this an Intex pool?
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  4. Back To Top    #4
    TizMe's Avatar
    Join Date
    Aug 2007
    Location
    Covington, Georgia
    Posts
    920

    Re: Ok, so pretty much brand new.

    Well said FPM !
    Les
    Don't have a pool right now. Just sharing what I have learned over the years!
    Helpful Links:
    Pool School,Pool Calculator,Cl/CYA Shock Chart,TF Test Kit
    Doing BBB and loving it!

  5. Back To Top    #5

    Re: Ok, so pretty much brand new.

    Wow, tyvm. Super informative. OK, the baking soda is added and im getting the borox and bleach right now. We do plan to use the pool today, so at what points is the pool unsafe to swim? directly after the bleach im guessing... any other time?

    (I'll add the info to my sig sometime today.)
    20k gal, IG Vinyl, IntelliFlo VF Pump, 60 GPM sand filter, 2 skimmers, one main drain, two returns, Dolphin Diagnostic cleaning robot, Taylor K-2006 test kit

  6. Back To Top    #6
    TizMe's Avatar
    Join Date
    Aug 2007
    Location
    Covington, Georgia
    Posts
    920

    Re: Ok, so pretty much brand new.

    If your adding small amounts of bleach (1 or 2 jugs) i would wait 30 minutes or so to swim and let it get circulated in the water.
    Les
    Don't have a pool right now. Just sharing what I have learned over the years!
    Helpful Links:
    Pool School,Pool Calculator,Cl/CYA Shock Chart,TF Test Kit
    Doing BBB and loving it!

  7. Back To Top    #7

    Re: Ok, so pretty much brand new.

    Ok, my alkalinity is now 70 ppm so that's good. Chlorines are still both < 0.5. I've added 1 1/2 cups of Borax, an hour later the pH is still too low to measure with my test kit.

    Should I keep doing the Borax by 1 1/2 cups until the pH is right before adding the bleach?

    Edit: i guess to be clear: i havnt added bleach yet, i just remember reading that the pH should be right before you add bleach
    20k gal, IG Vinyl, IntelliFlo VF Pump, 60 GPM sand filter, 2 skimmers, one main drain, two returns, Dolphin Diagnostic cleaning robot, Taylor K-2006 test kit

  8. Back To Top    #8
    dmanb2b's Avatar
    Join Date
    Apr 2009
    Location
    NY
    Posts
    3,728

    Re: Ok, so pretty much brand new.

    keep adding the borax until you get to at least 7.2 on the ph scale
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

Posting Permissions

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