Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: Need help understanding test results

  1. Back To Top    #1

    Join Date
    Jul 2015
    Location
    Canada
    Posts
    12

    Need help understanding test results

    I tested the water today and below is the outcome of the test. According to the test kit I need to bring out the PH, raise FC and lower CC to 0. I also need to raise CH to 250-300. anyone have any suggestions If I am doing anything wrong? I have added the Muatric acid now and have left the pump on for it to circulate, I will add the liquid chlorine tonight and will get calcium chloride at the pool store tomorrow, any idea if wall-mart carries it?

    Edit: the water looks clear but I do have slight algae on my steps which I try to brush daily as that area does not get much circulation.

    FC: 0.4
    PH: 8.0
    CC: 0.2
    TA: 90
    CH:100

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,349

    Re: Need help understanding test results

    Welcome to TFP.

    Since you're in Canada I assume you're using the Taylor kit.
    What's your CYA?
    What type pool is it? (Vinyl, plaster, fiberglass, etc.)
    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

  3. Back To Top    #3

    Join Date
    Jul 2015
    Location
    Canada
    Posts
    12

    Re: Need help understanding test results

    Quote Originally Posted by Bama Rambler View Post
    Welcome to TFP.

    Since you're in Canada I assume you're using the Taylor kit.
    What's your CYA?
    What type pool is it? (Vinyl, plaster, fiberglass, etc.)

    Hi- I have the Taylor K2006 test kit, its a 60,000 gallon gunite pool. I did not test for CYA yet but will do so tomorrow.

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Need help understanding test results

    Welcome to TFP!!!

    That is a big pool!!!

    Clearly you need to raise the FC level, but you have to know the CYA level to know to what according to the FC/CYA Chart.

    Please add your pool details to your signature as described HERE as it will help us help you.
    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!

  5. Back To Top    #5
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Need help understanding test results

    Welcome to TFP!

    FC is waayyyy low. Is there a reason why FC is so low?

    PH needs to be maintained between 7.2 to 7.8

    CC is ok

    TA is ok

    CH we can work on later.

    First problem to solve is why is FC so low. It is important to keep FC at target and never let it drop below minimum for your CYA or the pool will not be properly sanitized and algae will grow. Look at this chart to determine the correct FC level, Chlorine CYA Chart

    Also, check out
    Pool School - ABCs of Pool Water Chemistry
    Pool School - Recommended Levels
    Pool School - Recommended Pool Chemicals
    Pool School - PoolMath
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  6. Back To Top    #6

    Join Date
    Jul 2015
    Location
    Canada
    Posts
    12

    Re: Need help understanding test results

    Hi- FC seems to be low for a couple of reasons if I am understanding correctly given my limited knowledge, firstly there was rain two days in a row and the pump was off during these two days. I actually had to empty the pool a couple times. Secondly I only turn on the pump at night, from about 10 pm to 9-10 am the next day (8 cents a KWH at off peak hours versus 16 cents a KWH during the on peak day times). SWG is set at 60% which I now adjusted to 70% to see what difference it makes. I have bought 4 jugs of liquid chlorine to add but first want to retest the water after switching the SWG to a higher percentage. my SWG is a hayward T15 40k cell which is obviously to small for the pool since I have heard here that its best to have a cell twice the size of the pool. Only way to do that is to either install a commercial salt water generator ($$$$$) or add a second swg.

    I have noticed my PH goes up and according to the posts here PH naturally goes up over time, last time I added muriatic acid was about 2 weeks ago, I do not have anything that would aerate the water so for that I dont really know why its high! I called hayward a while back and they said part of the reason the cell is not producing or at least not producing enough chlorine is because the PH is high, not sure if this is true or not?

    I have everything in the pool school bookmarked and its been a tremendous help, kudos to whom ever took the time to write all that!

  7. Back To Top    #7
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Need help understanding test results

    The swg aerates the water. Keep adding acid when PH gets to 7.8 to drop it to 7.2. This will cause your TA to slowly drop and your PH and TA will eventually find equilibrium.

    Not running your pump means the SWG isn't making chlorine, even more important to add bleach.

    Don't know how many gallons your pool is so can't comment on your swg. There are 60k SWGs available, Pentair makes one and I'm sure others do. But, there is nothing wrong with running it at 100% to keep FC at the right level. Then add a little bleach to help out on big swim days. I like to take it up to 10ppm before and after on big swim days. For a weekend full of swimming take it to 10 again a few hours after also.

    Please add your pool info in your signature as shown here, Pool School - Getting Started
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

Posting Permissions

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