Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: What's going on? my test

  1. Back To Top    #1

    Join Date
    Jun 2015
    Location
    Rocklin Ca
    Posts
    78

    What's going on? my test

    So checked my pool at 7:00AM TC-5 PH 7.8 TA 110 CYA 55 Salt 3200. So I wanted to get the PH down to lower TA added 50oz Muriatic Acid (31%) So after about 4 hours I added 24oz of chlorine (14%) trying to get the FC to 6. I waited about 3 hours re tested PH 7.2 FC 3.5 so after adding more chlorine the FC went down. So what's going on? I also checked the FC last night FC was 5 same reading in the morning.
    In ground 20,000gal - pebble-tec - salt, Intelliflo pump, Sta-Rite filter 450 sq ft ,Hayward 6060 booster pump, non functioning Aqua Rite SWCG, TF 100 test kit.

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,083

    Re: What's going on? my test

    I am having a hard time following your conversation but I think I understand.

    Chlorine is a consumable item......particularly if you have organics in your pool chlorine can drop quite rapidly. Is that what you are asking?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Jun 2015
    Location
    Rocklin Ca
    Posts
    78

    Re: What's going on? my test

    I had zero chlorine loss last night. last night and this morning FC-5 CC-0. I lowered the PH from 7.8 to 7.2 added muriatic acid (lowered PH to lower TA) then after a couple hours I added 24oc of chlorine trying to raise the FC from 5 to 6.
    Now I'm getting an FC of 3.5 CC-0. Why would my FC go down? I spent about 5 minutes in the pool maybe a handful of leafs, pool is supper clear. Now the pool is at about 90˚ . I put TA instead of PH first post fixed it
    In ground 20,000gal - pebble-tec - salt, Intelliflo pump, Sta-Rite filter 450 sq ft ,Hayward 6060 booster pump, non functioning Aqua Rite SWCG, TF 100 test kit.

  4. Back To Top    #4

    Join Date
    Jul 2014
    Location
    Hope Mills, NC
    Posts
    556

    Re: What's going on? my test

    Chlorine gets used up, either hy attacking organic matter or by sun degradation. It does not stay for very long, especially in the sun.
    16 x 32 17500 gallons
    Vinyl in-ground
    Hayward 250# Sand Filter
    1 HP Pump
    Hayward SWG

  5. Back To Top    #5
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Location
    Longview, Texas
    Posts
    4,926

    Re: What's going on? my test

    You didnt loose any chlorine overnight, because the sun isnt shining at night. UV from the sun burns up chlorine. Thats why you saw it go down over a few hours in the daytime.

    Other than algae, other organic materials use up chlorine. Leaves, grass clippings, bugs, bunch of stuff in the skimmer....etc.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  6. Back To Top    #6

    Join Date
    Jun 2015
    Location
    Rocklin Ca
    Posts
    78

    Re: What's going on? my test

    So that would be considered a normal loss ? It cool down today to pleasant 101˚ The pool is pretty much hit by the sun all day. Being retired I do keep on top of debris in the pool and cleaning the skimmers. Thanks for the replies.
    In ground 20,000gal - pebble-tec - salt, Intelliflo pump, Sta-Rite filter 450 sq ft ,Hayward 6060 booster pump, non functioning Aqua Rite SWCG, TF 100 test kit.

  7. Back To Top    #7

    Join Date
    May 2015
    Location
    Juno Beach , Florida
    Posts
    210

    Re: What's going on? my test

    How long to you have the pump running and what % of on time is SWG set to?

    I have had similar problem here in FL with so much sunlight. I try and keep fc around 7-8.

    Also, your CYA seems a bit low - I always try and keep it between 70-80
    12k SWG pool, free form. 1HP flotec pump, P90 Leslie's filter. Florida. Taylor 2006 test kit. I think plaster, waiting verification from here.

  8. Back To Top    #8

    Join Date
    Jun 2015
    Location
    Rocklin Ca
    Posts
    78

    Re: What's going on? my test

    Pump 1800RPM for 1 hour , 2500 Rpm for 4 hours, 1400RPM for 1 hour Total 6 hours. pool sweep kicks in for 2 hours during 2500RPM run. SWG dose not work, salt is 3200PPM. Advice I was given was to use the non SWG chart. Haven't decided if I want to replace, repair or toss SWG. I just started a ledger 7-1-2015 of what my pool cost that will determine what I decide. BTW I had nothing but trouble with my SWG from the start.
    In ground 20,000gal - pebble-tec - salt, Intelliflo pump, Sta-Rite filter 450 sq ft ,Hayward 6060 booster pump, non functioning Aqua Rite SWCG, TF 100 test kit.

  9. Back To Top    #9

    Join Date
    May 2015
    Location
    Juno Beach , Florida
    Posts
    210

    Re: What's going on? my test

    When I took over from my pool person 10 weeks ago , I had all sorts of issues that I needed to fix. I have invested about 1,000 bucks - but glad I did.

    Why I had my salt tested, it was down to 2100 - even though display said 3200. So it turned out that the PCB board needed replacing. I cost 400 including install and 3 year warranty.

    I then bought test kit, extra agents , cleaning equipment, 6 gallons of bleach, etc. Had to add 80lb of salt, 2 gallons of Stabilizer, 30lb of calcium.

    I just recently did a successful SLAM.

    This morning I am at my target of 7.5FC, I have turned pump time down and at 35% SWG.

    It has all been worth it.

    Do you know what is wrong with the SWG? If it is Heyward, I would recommend calling their tech support, they are very good and very helpful.

    IMO, I would rather have balanced pool with SWG just keeping it nicely ticking over at the levels I want, than having to keep manually adjusting all the time.

    My return on investment is not necessarily just monitory , it is peace-of-mind and also I now no longer feel violated by a company charging 120 bucks a month for literally 5 minutes work per week.
    12k SWG pool, free form. 1HP flotec pump, P90 Leslie's filter. Florida. Taylor 2006 test kit. I think plaster, waiting verification from here.

Posting Permissions

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