Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Sour tasting water after months of rain in Texas, help me understand

  1. Back To Top    #1

    Join Date
    Aug 2014
    Allen, TX

    Sour tasting water after months of rain in Texas, help me understand

    Since we had rain in Texas for months I have not been checking chemistry and now that sun is finally out I wanted to get water in balance. Water is crystal clear, but tastes acidic. Here are my reading with Taylor K-2006 kit. What should my first step be?

    • PH is way to low, below 7.0, yellow color
    • Chlorine 45 ppm
    • Cyanuric Acid 90 ppm
    • Calcium Hardines - this test at test step 3. turned to medium pink, not red. After adding 20 drops in step 4 it turned to light purple
    • Alkalinity test is inconclusive. Sample never turned green at step 3, but turned dark pink. Proceeded to step 4, added 5 drops and noticed no change in color.
    10K gallons, IG vinyl free form Radiant Pool, 1HP SuperFlo 2 speed pump, 175 sqft Hayward C17502 plus cartridge filter, Intex Krystal Clear Saltwater System CS8110 Model 54601EG, Jandy Pro Series Underwater Nicheless LED. 1 skimmer, 1 suction outlet, 3 returns, The Pool Cleaner. Pool installation in progress as of 09/24/2014.

  2. Back To Top    #2
    Sandra B's Avatar
    Join Date
    Aug 2011
    Shreveport, LA

    Re: Sour tasting water after months of rain in Texas, help me understand

    Your first step is to get your pH up. Use pool math to determine how much to get it to 7.2. You may be way below that, so test after 1/2 hour and adjust upwards again. Once you get to 7.2-7.6, post up your full tests again (except CYA) for the next step. Your chlorine level is suspect, so let's do the tests again.

    Lemon juice is pH of about 2, so the lower your pH, the more acidic your water is going to be.
    18,000 gallon freeform inground plaster
    Jandy 1.5 hp pump & .75 hp booster pump
    Aquapure SWG
    Pentair Triton II sand filter
    Legend pressure-side vacuum

  3. Back To Top    #3
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Columbia, SC

    Re: Sour tasting water after months of rain in Texas, help me understand

    At high chlorine levels the colors on the CH & TA can be "different". What you are looking for is the color shift. On each test you will start with color A and add drops until it shifts and stops changing to color B.

    My inclination would be to suggest you change some water out if you are not under restrictions to get your CYA down to around 70. At that point adjust the pH up. Why waste chemicals to adjust the pH only to dump water. Now, if you want to hold the 90 CYA, then yest adjust pH first.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  4. Back To Top    #4
    bware's Avatar
    Join Date
    Apr 2015
    The Woodlands, TX

    Re: Sour tasting water after months of rain in Texas, help me understand

    But remember with FC over 10, your PH will not be accurate so dumping water makes sense.
    32 x 15 15500 gal. IG gunite, 6 ft. round attached spa, diamond brite 2 plaster, flagstone coping w/concrete spray deck, IntelliChlor IC-40 SWG, 2 hp Max-E-Pro pump, 450 sq.ft. System 3 cartridge filter, 400k Max-E-Therm NG heater, automation is IntelliTouch i7+3, Polaris 280 pressure side cleaner,
    TS 100, Borax

Posting Permissions

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