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Forum: Dealing with Algae & Slime

Green & slimey, mustard lined, pink in the pipes, black algae mats; Green Treat, Yellow OUT, Yellow Treat, copper algaecides, & more.

  1. Sticky Thread Sticky: Dealing with mustard algae

    Mustard algae tends to be very chlorine resistant, and tends to reoccur. Most algaecides are ineffective against it. There are several options, but...

    Started by PoolDoc‎, 06-18-2014 09:29 AM
    • Replies: 1
    • Views: 22,357
    04-22-2020 03:57 PM Go to last post
  2. Sticky Thread Sticky: Algae . . . or something else? Recognizing & treating pool algae successfully.

    _____________________________________ Algae . . . or something else? Recognizing & treating pool algae successfully. this post . ] ...

    Started by PoolDoc‎, 06-24-2018 07:18 PM
    • Replies: 5
    • Views: 17,794
    06-25-2018 11:19 AM Go to last post
  3. Sticky Thread Sticky: FAQs & Guides: Dealing with Algae

    ____________________________________ FAQs & Guides: Dealing with Algae Algae . . . or something else? Recognizing & treating pool algae...

    Started by PoolDoc‎, 06-24-2018 05:18 PM
    • Replies: 0
    • Views: 5,077
    06-24-2018 05:18 PM Go to last post
  1. How can I tell if I have algae?

    I got my pool last year and, aside from having very hard well water, I didn't have any problems. I put polyquat in the water before closing the pool...

    Started by RaceAngel88‎, 06-07-2016 11:20 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 138,661
    06-17-2016 11:21 AM Go to last post
  2. opening my green pool...UGH

    this is the first season we are opening our pool with SWCG. After closing for the winter with the winter cover I was expecting better...we had a...

    Started by Fiveattripp‎, 04-09-2017 08:14 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 133,129
    04-25-2017 06:56 AM Go to last post
  3. Mustard Algae? Or chemical stain?

    <<photos sent to poolforum acct.>> Last year I had a localized stain (about 6'x3') downstream of the outflow where I put most of my chemicals in. ...

    Started by Vtattebury‎, 07-16-2016 12:59 PM
    2 Pages
    1 2
    chemical, chemical stain, mustard algae
    • Replies: 13
    • Views: 132,106
    07-29-2016 03:55 PM Go to last post
  4. Adding Borax to Make your Pool Resistant to Algae

    ------------ IMPORTANT: BORAX WILL *NOT* ELIMINATE ALGAE ---------- ----------------------------- It just makes it easier to control....

    Started by PoolDoc‎, 08-06-2012 07:52 AM
    • Replies: 2
    • Views: 116,282
    06-17-2015 12:37 AM Go to last post
  5. Yellow/Brown dusty deposits that reappear repeatedly

    I have a 24' ag pool that has been perfect until last week. I have been using the BBB method since installing the pool in July. However, late last...

    Started by jstonemo‎, 08-29-2006 10:31 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 33
    • Views: 53,310
    05-04-2007 04:56 PM Go to last post
  6. Black Algae in Saltwater Pool

    Hi, thanks for any advice. We have a saltwater pool that had developed black algae. Is the treatment the same as for a chlorinated pool? Also, I...

    Started by sb2323‎, 04-25-2006 01:07 PM
    • Replies: 6
    • Views: 52,009
    05-09-2006 01:26 PM Go to last post
  7. adjust cya before or after shocking

    Hi, I have an inground pool with SWG and vinyl liner. Since I live in Alabama, we don't really close our pool over the winter. We actually were...

    Started by Kateyru‎, 04-01-2012 04:36 PM
    13 Pages
    1 2 3 ... 13
    • Replies: 127
    • Views: 49,617
    06-05-2012 08:51 AM Go to last post
  8. CYA over 100 with yellow/mustard algae

    Hi, and thanks for the great forum. I've been reading for several weeks and finally decided to register and ask a question. I recently converted...

    Started by MikeM‎, 07-18-2013 10:44 AM
    6 Pages
    1 2 3 ... 6
    borates, hic2, mustard algae, phosphate remover, sticky, sticky-phosphate
    • Replies: 56
    • Views: 48,198
    06-02-2015 11:06 PM Go to last post
  9. White gritty scale

    Hello, I am new here and have a problem with a white gritty substance on my pool walls no one can seem to figure out. Hoping to get some answer to...

    Started by Wapak‎, 06-05-2012 03:12 PM
    5 Pages
    1 2 3 ... 5
    gritty, sand algae, sand-algae, scale
    • Replies: 42
    • Views: 47,972
    06-10-2014 09:48 AM Go to last post
  10. Successful treatment of "pink algae"

    Hi all, I live in the Northeast where I’ve used my in ground pool from June to late September. Last year I started using a solar cover and I got...

    Started by Water_man‎, 05-15-2008 02:21 AM
    2 Pages
    1 2
    • Replies: 10
    • Views: 47,747
    09-09-2010 01:46 PM Go to last post
  11. Skimmer socks and algae

    Those of us who use skimmer socks swear by them. They catch all of the small stuff which would normally get sucked through the basket holes and clog...

    Started by AnnaK‎, 08-31-2006 11:52 AM
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 45,106
    09-20-2006 09:01 PM Go to last post
  12. Mustard Algae? How to get rid of it?

    Hi, A week ago I noticed the water started getting agreen tint. I vacuumed and it was a tad better but still greenish and a little murky. I went out...

    Started by CandyMoss‎, 10-06-2007 02:59 PM
    • Replies: 4
    • Views: 41,285
    10-07-2007 08:27 AM Go to last post
  13. Green, Cloudy, Disgusting Pool? You have ALGAE!!!

    If you are a new member and you are looking for help with your water being green, dirty, cloudy, ugly, etc, here's what you need to do: You need to...

    Started by CarlD‎, 07-06-2006 10:15 PM
    algae, sticky
    • Replies: 9
    • Views: 40,781
    06-09-2011 03:14 PM Go to last post
  14. My pool looks like a swamp

    I have a severe case of algae. When I opened my pool over a month ago it looked like a swamp. I brought my chemicals up to normal then started...

    Started by vanman2501‎, 05-18-2010 08:38 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 33
    • Views: 40,185
    06-09-2010 08:48 PM Go to last post
  15. Cloudy pool/white stringy(snotty) stuff?

    Hi everyone! I am very happy to be here! We got our first ever above ground pool. It is a 12x39 from walmart. I have had such a problem getting the...

    Started by starfish‎, 07-16-2011 07:19 PM
    • Replies: 7
    • Views: 38,810
    07-17-2011 06:42 PM Go to last post
  16. fighting mustard algae

    I'm starting a new thread as my old, long one seems to have gotten lost in the shuffle. I'm pretty sure I have mustard algae, thanks to info from...

    Started by Kateyru‎, 06-07-2012 10:22 PM
    8 Pages
    1 2 3 ... 8
    • Replies: 75
    • Views: 35,148
    09-08-2012 10:12 PM Go to last post
  17. Fighting Algae with Borax

    Going to try and follow the posts in china-shop to get my borates to 50ppm. Bleachcalc says I will need to add 650oz or 40lbs! (40,000 gallon...

    Started by Tredge‎, 06-06-2007 09:48 PM
    6 Pages
    1 2 3 ... 6
    • Replies: 56
    • Views: 34,142
    08-01-2008 04:24 PM Go to last post
  18. HTH Algae Guard- Anybody use it?

    I've had 3 pools. Lots of experience with Pools. I am a chemist by degree. My question is pretty simple. Does anyone have any experience with...

    Started by 3d-aholic‎, 06-07-2011 06:30 PM
    • Replies: 8
    • Views: 33,638
    06-12-2011 12:28 PM Go to last post
  19. How long should it take to clear black algae

    Hello all - I need some help. I can't keep my CL levals above 10 for any length of time. Here are my numbers fc = 2 tc = 3 ta = 90 cya = 70...

    Started by joecus‎, 06-09-2011 01:24 PM
    7 Pages
    1 2 3 ... 7
    bbb method, black algae, sticky, sticky-algae
    • Replies: 64
    • Views: 33,509
    08-08-2011 01:28 AM Go to last post
  20. Yellow mustard algae & Yellow Out vs Yellow Treat vs Mustard Master

    I take care of a 60,000 gallon swimming pool. There is no evidence of yellow mustard or any algea in my pool the pool is crystal clear and tests...

    Started by angiedubberke‎, 08-04-2014 10:38 AM
    • Replies: 1
    • Views: 33,456
    08-04-2014 12:52 PM Go to last post
  21. Pool is clear but bottom looks spotty and dirty

    I had Algae issues last season and followed the advice this forum gives and it has been going well. I dont know if I started noticing more this...

    Started by rkrgk‎, 05-03-2013 04:36 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 35
    • Views: 32,851
    06-10-2013 07:25 PM Go to last post
  22. Algae loves my pool

    Opened my pool about a month ago. Shocked it once a week and have been vacuuming. Noticed debris on the bottom a few days later after vacuuming...

    Started by mrsbusymomee‎, 05-19-2011 10:25 PM
    6 Pages
    1 2 3 ... 6
    • Replies: 57
    • Views: 31,565
    07-09-2011 08:47 PM Go to last post
  23. Algae and cloudy pool..Someone pleeease help me!!! I NEED ASSISTANCE!

    Last year first year with the BBB method, opened up to green pool. I've been adding bleach, the pool is not green anymore but now very cloudy. I'm...

    Started by smoovie‎, 05-22-2013 08:05 AM
    2 Pages
    1 2
    sticky
    • Replies: 12
    • Views: 31,542
    05-27-2013 08:28 PM Go to last post
  24. Unhappy Black spots on bottom of pool??

    My gunite pool is about 18 years oil. Last summer I started getting a few small black spots on the bottom of the pool. This summer I have many more,...

    Started by cbaird‎, 05-25-2013 02:01 PM
    • Replies: 6
    • Views: 29,822
    06-02-2013 01:20 PM Go to last post
  25. New Salt System, algae is recurring regularly

    In the past I have been a firm believer in the PoolForum, have used it often and have been a contributor. Previously I was using a BBB method and...

    Started by jhk49‎, 10-09-2014 03:48 PM
    6 Pages
    1 2 3 ... 6
    • Replies: 51
    • Views: 28,785
    10-21-2014 08:12 PM Go to last post
  26. Could this be algae or dirt/pollen?

    I'm getting mixed feelings about this. We have had this show up in the pool. I shocked (with granular chlorine) and the chlorine level maintained...

    Started by itstoohot‎, 06-24-2006 01:05 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 39
    • Views: 28,454
    05-07-2007 02:25 PM Go to last post
  27. Mustard Algae

    Hi all.. I'm back again. With the same issue. We believe we have mustard algae and we are not getting rid of it. We've also changed out the sand in...

    Started by AndreaA‎, 04-11-2011 03:03 PM
    3 Pages
    1 2 3
    attaboy
    • Replies: 26
    • Views: 28,326
    06-11-2011 11:18 AM Go to last post
  28. Can anyone tell about HTH Algaecide

    I remember reading back before the forum crashed that someone was using the HTH Super Algaecide that is 60% strength. I could be total wrong but i...

    Started by poolboyforjenny‎, 06-30-2006 04:56 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 27,341
    08-21-2006 06:25 PM Go to last post
  29. Wanted: Mustard algae or suspected mustard algae

    Wanted dead or alive: Yellow "mustard" Algae I'd like to find this no good scoundrel and put him to the test. Is he what he's made of or not....

    Started by gonefishin‎, 08-18-2007 01:23 PM
    3 Pages
    1 2 3
    pix, pix2fix
    • Replies: 28
    • Views: 27,336
    08-30-2007 08:40 PM Go to last post
  30. A picture is worth a thousand words . . .

    I thought I'd post some photos of my green pool in the hopes that seeing it might shed some light on my situation. The photos dated 5-23-06 is where...

    Started by Pamsel‎, 06-12-2006 12:51 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 40
    • Views: 25,582
    05-26-2007 12:21 PM Go to last post

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