Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 14 of 14

Thread: Could copper causing pool to green up?

  1. Back To Top    #1

    Join Date
    Jun 2013
    Location
    Mckinney, Texas.
    Posts
    7

    Could copper causing pool to green up?

    I've been trying to get my pool to clear up after coming back from vacation. I've shocked it a few times and backwashed filter 3 times. The pool went from chucky green to just green. I was maintaining FC at about 10ppm but it never cleared up. Current readings are as follows with the test kit that i have.

    FC=5ppm
    Ph==7.2
    CYA=30

    The sales person said that phosphates were good but that maybe I had copper issue. I've never had a problem of going from Green to Light blue in less than 24 hours but it's been 3 days and I haven't had any luck. I just bought 12 jugs of 121oz 8.25% bleach and I'm planning on taking it to 20ppm. Should I wait til night time or go ahead and start right now even though outside temp is 95 degrees? Could I really have a copper problem that i'm fighting? Basically is there anything else I need to check before I start wasting more money on chlorine?
    10k gallon AG pool with sand filter. Located in North Texas.

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Could copper causing pool to green up?

    Did they test for copper?

    Have you been using algaecides or "mineral sanitizers"? That's usually where the copper comes from.

    You might just have a tough strain of algae. Shock level is 13 for your pool, if the CYA level is to be trusted. You never hit that. It needs to get that high and stay there, possibly for several days. That can take a lot of chlorine bleach.

    The good news is, if you get your own test kit and follow our method, your pool may never get algae again and you will never have to go to the pool store except to buy odd bits of hardware.
    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!

  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Could copper causing pool to green up?

    If the water is crystal clear sparkling green then you have a copper problem. If it is still hazy from the algae and green then it is almost certainly algae related.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  4. Back To Top    #4

    Join Date
    Jun 2013
    Location
    Mckinney, Texas.
    Posts
    7

    Re: Could copper causing pool to green up?

    I can't see the bottom of the pool because it's green so it's hard to say if its crystal clear green. I've never used an algaecide or mineral sanitizers so i'm hoping it's just a algae problem. The lady at Leslie's pool said my copper reading was .6 which I have no idea what that means to me or how to adjust it. She suggested flocc and vacuum it out to see if it would work. My thoughts were that it was just algae since i've never had a problem with copper in the 8 years i've owned the pool. Then again i've never had this much problem with the algae. So what would you all suggest I try next. Raise FC levels and see it goes away or treat for a copper problem, in which case what would be the best way to approach that.
    10k gallon AG pool with sand filter. Located in North Texas.

  5. Back To Top    #5
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Could copper causing pool to green up?

    If copper really is 0.6 you have a problem, however pool store testing is remarkably unreliable so who knows.

    If the water was crystal clear green you could read the lettering on a quarter sitting on the bottom of the deep end, it would just be green. If you can't see the bottom it is almost certainly algae.

    Raise FC to shock level and give the chlorine and the filter time to work.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  6. Back To Top    #6

    Join Date
    Jun 2013
    Location
    Mckinney, Texas.
    Posts
    7

    Re: Could copper causing pool to green up?

    Ok, I will start raising the chlorine level, since I can't even see the brush when I'm brushing the bottom of the pool. So I should shoot for 13ppm of FC or should I take it higher? Thanks.
    10k gallon AG pool with sand filter. Located in North Texas.

  7. Back To Top    #7

    Join Date
    Jun 2013
    Location
    Mckinney, Texas.
    Posts
    7

    Re: Could copper causing pool to green up?

    Can you have too much FC? What are the effects besides more dissolved solids?
    10k gallon AG pool with sand filter. Located in North Texas.

  8. Back To Top    #8
    Charlie_R's Avatar
    Join Date
    May 2013
    Location
    Mexico, MO
    Posts
    2,156

    Re: Could copper causing pool to green up?

    Are all the tests done at the pool store? Or do you have your own kit? If you don't, please get one. Either the TF100 or the K-2006. Believe me, your pool will thank you!
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

  9. Back To Top    #9
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Could copper causing pool to green up?

    Quote Originally Posted by Cheaptric
    Can you have too much FC? What are the effects besides more dissolved solids?
    If you go waaaay over shock level, you might bleach the liner, and you'll waste chlorine.

    Chlorine loss to UV light is a percentage -I recall something like 45%, but don't quote me on that - so if you jack it to 30, you'll lose 12 just to sunlight. Whereas if you only go to 12, then you only lose about 5. It can add up quick!

    It's sort of like taking antibiotics from the doctor. You take them twice a day for a week or so, until they're gone. You don't take them all at once. You're after the steady kill.
    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!

  10. Back To Top    #10

    Join Date
    Jun 2013
    Location
    Mckinney, Texas.
    Posts
    7

    Re: Could copper causing pool to green up?

    I do have a test kit but its old, didn't know how reliable it was. I was able to get the R-0013 for CYA testing today but haven't been able to find the powder and the R-0871 reagent locally. May have to order it but won't be here in time for me to use while trying to get the pool to clear up. I raised the FC to 24ppm per the calculator and then tested it with the old test kit and it was correct. I will see how this works.
    10k gallon AG pool with sand filter. Located in North Texas.

  11. Back To Top    #11

    Join Date
    Jun 2013
    Location
    Mckinney, Texas.
    Posts
    7

    Re: Could copper causing pool to green up?

    My pool finally changed color from a green to a bluish green. I've gone thru 12 jugs of bleach trying to maintain at least 15ppm of free chlorine. Guess I will need to make another trip for bleach. Still have not been able to find the reagent I need for testing.
    10k gallon AG pool with sand filter. Located in North Texas.

  12. Back To Top    #12
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Could copper causing pool to green up?

    You need to order it. Very rare to find the FAS-DPD locally unless you have a commercial supply store.
    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!

  13. Back To Top    #13

    Join Date
    Jun 2013
    Location
    Mckinney, Texas.
    Posts
    7

    Re: Could copper causing pool to green up?

    Pool is now more of a light blue but but not clear. Should I use some floc to help it clear up? Should I keep dumping bleach into it till its clear? Try adding DE to the sand filter? This is taking way too long. Thank you everyone for all your help.
    10k gallon AG pool with sand filter. Located in North Texas.

  14. Back To Top    #14
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Could copper causing pool to green up?

    Are you using the FAS-DPD test and following the shock process? Why would you expect the pool to clear faster than it took get out of control?
    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!

Posting Permissions

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