Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 12 of 12

Thread: 1st time poster - considering 2nd time drain

  1. Back To Top    #1

    1st time poster - considering 2nd time drain

    To begin, thank you for providing this forum. I've already learned a great deal and look forward to learning much more.

    pH - 7
    Chlorine: off the chart(red in color)
    I do not have any other readings but will add them tomorrow after a visit to Leslie's Pool Supply.
    I will also purchase the Taylor Complete FAS-DPD Pool Water Test Kit K-2006.

    During the last week of July I gave up my attempt at conquering the algae bloom and emptied the pool. I refilled the pool and added granular chlorine until I received a proper FC reading. After 2 weeks of heavy use, daily water tests(FC and pH) and filter changes the pool began to appear a little cloudy(I could still clearly see the bottom). I continued normal daily maintenance but added more chlorine. By August 17th the pool began to spiral down hill and algae was visibly present on the bottom. pH is currently low(7- pale yellow) and free chlorine is high(red color).

    Any suggestions.I live in FL so we still have a couple months of pool time.

    Thanks in advance.

    Chad
    Chad
    Summer Escapes 15' x 42" Quick-Set Ring Swimming Pool installed June 2012
    3200 gallons, cartridge Filter, Above ground, vinyl
    Filter Pump RP800 780 G.P.H.

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: 1st time poster - considering 2nd time drain

    Welcome

    Take a look at the TF-100 vs the K-2006 in the link in my signature. Either will work, but the TF-100 comes with more of the reagents you actually need so you will not run out as quickly.

    I would not put much faith in the pool store testing (and have my doubts you will find the FAS-DPD test there).

    Seems like you just need to get some reliable test results to know what is going wrong. What were you using to add chlorine? If it was the dichlor, then I am guessing your CYA is high and your FC is not high enough ... that would also explain the low pH. Switch to liquid chlorine.
    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!

  3. Back To Top    #3
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,085

    Re: 1st time poster - considering 2nd time drain

    At high chlorine levels, the pH test is inaccurate, so don't bother with that.

    It's important that we know your CYA and your chlorine level accurately to best help you. Get those numbers and we can proceed.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  4. Back To Top    #4
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: 1st time poster - considering 2nd time drain

    Welcome to tfp, chadlife

    You are getting good advice!
    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.

  5. Back To Top    #5

    Join Date
    Aug 2012
    Location
    Serbia (Europe)
    Posts
    65

    Re: 1st time poster - considering 2nd time drain

    Quote Originally Posted by JohnT
    At high chlorine levels, the pH test is inaccurate, so don't bother with that.

    It's important that we know your CYA and your chlorine level accurately to best help you. Get those numbers and we can proceed.
    When you say high chlorine, what is high so the PH test won't work?

  6. Back To Top    #6
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: 1st time poster - considering 2nd time drain

    the pH test becomes unreliable when FC is greater than 10ppm. It may actually be accurate if you look at the color immediately, but it will drift within seconds.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    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!

  7. Back To Top    #7
    Casey's Avatar
    Join Date
    Apr 2007
    Location
    SW PA
    Posts
    10,157

    Re: 1st time poster - considering 2nd time drain

    Quote Originally Posted by chadlife
    By August 17th the pool began to spiral down hill and algae was visibly present on the bottom. pH is currently low(7- pale yellow) and free chlorine is high(red color).


    Thanks in advance.

    Chad
    Is it just me? But does it seem like there is a mistake being made between the regants being used to test pH and chlorine?
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

  8. Back To Top    #8
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: 1st time poster - considering 2nd time drain

    maybe not. The DPD chlorine test is pinks unlike the OTO chlorine test that is yellows.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    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!

  9. Back To Top    #9

    Re: 1st time poster - considering 2nd time drain

    Thank you for the follow up posts.posting.php?mode=reply&f=24&t=52449#

    I also thought that maybe I switched the reagents after my first red chlorine level but that's not the case.

    I was using trichloro granular chlorine and 3inch tabs. I switch to dichloro granular 5 days ago but stopped adding additional chlorine on Tuesday.

    The waterTests I received from the pool store yesterday are as follows:
    FAC: 6 (this was a guess as the color was off the scale)
    TAC: 6
    CH: 200
    CYA: 60
    TA: 90
    pH: 7.4
    Copper: 0
    Iron: 0
    TDS: 1500
    Pho:200
    Temp: 78

    I have a TF-100 test kit on the way.

    Please advise.

    Thanks.

    Chad
    Chad
    Summer Escapes 15' x 42" Quick-Set Ring Swimming Pool installed June 2012
    3200 gallons, cartridge Filter, Above ground, vinyl
    Filter Pump RP800 780 G.P.H.

  10. Back To Top    #10

    Re: 1st time poster - considering 2nd time drain

    Quote Originally Posted by chadlife
    Thank you for the follow up posts.posting.php?mode=reply&f=24&t=52449#

    I also thought that maybe I switched the reagents after my first red chlorine level but that's not the case.

    I was using trichloro granular chlorine and 3inch tabs. I switch to dichloro granular 5 days ago but stopped adding additional chlorine on Tuesday.

    The waterTests I received from the pool store yesterday are as follows:
    FAC: 6 (this was a guess as the color was off the scale)
    TAC: 6
    CH: 200
    CYA: 60
    TA: 90
    pH: 7.4
    Copper: 0
    Iron: 0
    TDS: 1500
    Pho:200
    Temp: 78

    I have a TF-100 test kit on the way.

    Please advise.

    Thanks.

    Chad
    without accurate test results from your own test kit it is difficult to know what to do. However, if you assume that the pool store results are accurate (which they likely are not) you can get started shocking. Keep in mind that their results may be wildly inaccurate causing you to waste money or even possibly damage your pool if you have liner (by fading it). If you really just want to get started shocking:

    1) go here pool-school/chlorine_cya_chart_shock to figure out what your shock level is based on your CYA level
    2) Your shock level for your reported CYA is 24ppm. The challenge is if they messed up the CYA you may have significantly more or less CYA than they measured. If less, then if you shock with 24ppm you may damage your liner. If it is more, then you will waste money (although you will still kill a lot of algae)
    3) To be able to measure your FC when it is that high you need to dilute your test water. The larger volume you start with the better because the less measuring errors will impact the results. You will need to dilute your sample at least 4:1. Measure the largest amount of your sample that will fit in your tube (44ml?), pour that into a bowl, then do that 4 more times with distilled water. Mix it up, then pour whatever amount your test needs back into the tube.

    Each unit of FC you read on your test is equal to 5 units of real FC.

    Ive never actually done this before so the experts can weigh in on how well this works in practice.
    17,800 gallon, IG pool, 595 sq feet (17x35x4.5 avg rectangle), Hayward 525 cartridge filter, diamondbrite, 2 hp 2 speed hayward tristar filter, Stenner 45mhp10 automatically chlorinating

  11. Back To Top    #11
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: 1st time poster - considering 2nd time drain

    Quote Originally Posted by chadlife
    have a TF-100 test kit on the way.
    you will love the control it will give you over your pool chemistry...and the algae you are fighting. Until you get it, it is going to be hard to deal with the algae. For sure, do not put in anymore trichlor or dichlor until you test with you new kit. Right now, if you cya is at 60 ppm, you do not want to add anymore, so use bleach/liquid chlorine to chlorinate. Other than that I would hold fast until your kit arrives.

    Quote Originally Posted by march2012
    Ive never actually done this before so the experts can weigh in on how well this works in practice.
    It can work in a pinch, but not great. As you go to higher and higher ratios, the error in the test increases as well.
    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.

  12. Back To Top    #12

    Re: 1st time poster - considering 2nd time drain

    My FC was 4 this afternoon(yellow again) and after adding YellowOut the water is blue(no longer green). I'll use liquid bleach to maintain proper FC and wait for test kit to arrive. The water is blue in color but cloudy. Thanks.
    Chad
    Summer Escapes 15' x 42" Quick-Set Ring Swimming Pool installed June 2012
    3200 gallons, cartridge Filter, Above ground, vinyl
    Filter Pump RP800 780 G.P.H.

Posting Permissions

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