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

Thread: Need testing help AKA clueless new pool owner

  1. Back To Top    #1

    Need testing help AKA clueless new pool owner

    Three months into being the concerned owner of a sometimes lovely pool I decided that I did not like blindly doing/buying what the guy at the pool store told/sold me to.

    So after spending many hours here stalking you fine folks, I made the move and ordered the Taylor K-2006. Below are my results. I think I have a basic understanding of how to get the results now I need you to help point me in the direction of what to do with them. PLEASE!

    FC 16
    CC .5
    pH 7.9
    CH 870 (not sure if this can be right?)
    ALK 170
    CYA sample turned cloudy after adding only a few drops, so I'd guess many hundreds

    Oh also the pool has an issue with mustard algae, small amounts form on the side wall in two places. I attempted to clear up by following the pool stores instructions only to have it return in a few days. I now have a better understanding of why that didn't work. For now I am more concerned about getting everything else into line. Other than that, the pool looks ok. Although it has gotten a little cloudy the last couple days.
    26,000, IG, Plaster, 1.5 hp pump, DE filter, located in Los Angeles

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: Need testing help AKA clueless new pool owner

    Welcome to tfp, schmory@

    First it would be good to know how high your cya is. You can repeat the test by mixing half pool water with half cya-free water (tap water works for this) and repeat the test. Then multiply your result by 2.

    Most likely you will have to do a partial drain/refill.

    What pool surface do you have?

    Do you know how high your ground water level is?
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  3. Back To Top    #3

    Join Date
    Jun 2012
    Location
    Howell, NJ
    Posts
    977

    Re: Need testing help AKA clueless new pool owner

    As for the high CH,
    1) Where are you located?
    2) What is your fill water CH?
    3) Have you added any powdered chlorine products that may have added CH? The bag would say Calcium Hypochlorite on it.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

  4. Back To Top    #4

    Re: Need testing help AKA clueless new pool owner

    I entered my pool info in my signature, then must have forget to SAVE it! Hopefully it is fixed now. Just in case it is a 26,000 IG Plaster in Los Angeles.

    I tried doing the 1/2 pool 1/2 tap water trick, and the CYA still wasn't calculate-able. I recognize that some large portion of water will have to be replaced. I just want to double and triple check that that is the case before I attempt it. Also we plan to drain the pool and do some work to it at some point (replace tiles etc.) so I would rather if I could drain at that point if I can get along until then.

    I am currently using the pucks (I bought a whole buckets worth before I knew better) as had the pool guy for years before me. So I am sure that the level of CYA is high, I'm just not sure how high.

    As for the CH, I did not think to test our water, will do that and compare.

    Thanks for such quick replies!
    26,000, IG, Plaster, 1.5 hp pump, DE filter, located in Los Angeles

  5. Back To Top    #5
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: Need testing help AKA clueless new pool owner

    Defeating mustard algae at insanely high CYA levels will be nearly impossible without buying Chlorine by the tanker load.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

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

    Re: Need testing help AKA clueless new pool owner

    Quote Originally Posted by schmory@
    ...
    FC 16
    CC .5
    pH 7.9
    CH 870 (not sure if this can be right?)
    ALK 170
    CYA sample turned cloudy after adding only a few drops, so I'd guess many hundreds
    ...
    Welcome to the club.

    870 CH is really easy to get around here. I'm close to it again, myself. Our very dry winter really put a crimp in my rainwater dilution scheme.

    Astronomical CYA is also really easy to get if the pool is fed a steady diet of pucks. When I took over my pool, I had to dilute 1:3 and came up with somewhere between 220 & 240 on CYA.

    That year we also had water restrictions in place, so a major drain was out of the question. Fortunately, my pool was clear, so I was able to struggle through. You don't really have that option. If you want to get rid of the green, and the high CYA, and the high CH, the only feasible way is to start draining.

    Just as a tip: CYA doesn't hurt the lawn any.
    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

    Re: Need testing help AKA clueless new pool owner

    I tested the tap CH and came up with 180, so the pool is really off.

    I guess I know what I need to do. Thanks for all the help!
    26,000, IG, Plaster, 1.5 hp pump, DE filter, located in Los Angeles

  8. Back To Top    #8

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,082

    Re: Need testing help AKA clueless new pool owner

    Since you REALLY need to drain because of CYA, I would suggest doing 1/3 drain/refill, 1/3 drain/refill, and then a third 1/3 drain refill.

    This will not only cure your CYA issue but get your CH to a manageable level, too.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

Posting Permissions

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