+ Reply to Thread
Results 1 to 2 of 2

Thread: Test results after partial drain. Next step?

  1. #1
    Join Date
    Jun 2006
    Posts
    19

    Default Test results after partial drain. Next step?

    Since I had a CYA of over 100 and TH of 500 I decided to drain the pool last night. I took the water level down to 28 inches which is almost halfway. Finished refilling it today around 11:30 am then added a 1 gal 46 oz bottle of 6% bleach.

    Before this I was having to add at least 2 of these bottles every night just to get a chlorine reading of any kind.

    At around 5 pm I tested the TC at 5. I did a complete test around 10 pm and got the following.

    TC 3
    Ph 7.2
    CYA 80 (was expecting this to fall quite a bit more)
    TH 280
    TA 180

    I am not sure how accurate this HTH 5 way kit is, however, my results tend to vary significantly to the pool stores tests in some areas.

    BTW. I have a 20,000 gal AG pool

  2. #2
    aylad's Avatar
    aylad is offline SuperMod Emeritus Burfle Ringer aylad 4 stars aylad 4 stars aylad 4 stars aylad 4 stars aylad 4 stars aylad 4 stars
    Join Date
    Dec 1969
    Location
    Northwest Lousiana
    Posts
    4,757

    Default Re: Test results after partial drain. Next step?

    Your test results don't look too bad, except TC of 3 isn't high enough for CYA of 80--you should have it closer to 5 or 6. Your TA is still a tad high,but in a vinyl pool with the lowered calcium, it shouldn't cause you a problem. I wouldn't use cal-hypo products to chlorinate/shock with, though, because it'll make your Ca go up again and the high Alk can cause you some cloudy water problems.

    Janet

+ Reply to Thread

Similar Threads

  1. how do I close my pool step by step
    By timmie in forum Pool Startup, Shutdown, & Winter Operation
    Replies: 1
    Last Post: 08-02-2006, 09:12 AM
  2. Baquacil to Chlorine Step by Step?
    By dijnick in forum Chlorine Alternatives: UV, Ozone, Baquacil (PHMB), etc
    Replies: 4
    Last Post: 07-13-2006, 07:41 PM
  3. can someone give me step by step to change from soft swim to chlorine, please
    By peggles0224 in forum Chlorine Alternatives: UV, Ozone, Baquacil (PHMB), etc
    Replies: 1
    Last Post: 06-27-2006, 04:58 PM
  4. First 234s test results and warning about pool stores' results
    By SoCalBoo in forum DPD-FAS based testing
    Replies: 1
    Last Post: 06-16-2006, 01:48 PM

Bookmarks

Posting Permissions

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