Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 16 of 16

Thread: Hi from Austin I have white plaster turning grey

  1. Back To Top    #1

    Hi from Austin I have white plaster turning grey

    My pool was finished last September 23. Last month I noticed large grey spots forming on the plaster. Go the water checked. Cleaned the filters. Changed the Nature 2. Called the pool contractor. He said he had never seen this in 40 years. Like I believe that! He sent out the pool service to check the water. Their service man said the plaster looked 20 years old. The owner of that company emailed that he would send someone out to look. Never showed. Now the contractor says he is sending out the plaster company. I saw that someone else had this issue a few years ago, but
    I saw no outcome on the postings. I found an article written that said it could come from troweling the plaster too long when it is applied. Does anybody know anything about how to fix this condition. Its seems to be worsening.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Hi from Austin I have white plaster turning grey

    Welcome to TFP!

    A picture and your current water test results would help us narrow down what might be happening.
    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

  3. Back To Top    #3

    Re: Hi from Austin I have white plaster turning grey

    Right when it started I had it tested
    Chlorine 3 I had shocked it thinking it was stains.
    ph 7.4
    TA 80
    CYA 100
    Calcium 260
    TDS 800
    Copper/iron 0
    phosphates 100
    I am not sure how to post a pic. I will figure that out and post one.

  4. Back To Top    #4

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Hi from Austin I have white plaster turning grey

    Ignore the phosphates. Your CYA is too high, and unless you have a salt water chlorine pool it is way too high. Can you post details about what kind of pool you have, equipment types, etc? You are most certainly going to have to drain a bunch of water. For Austin, that's low CH. Good news!
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  5. Back To Top    #5

    Re: Hi from Austin I have white plaster turning grey

    the pool is 13000 gallons. Hayward ecostar pump Hayward cartridge filters. Nature 2 inline chlorinator. It is NOT saltwater

    Yes, I know the cya is high. The pool service company said that is because I am using chlorine tablets. Because of the drought lots of new
    water has been put in since last year.

    I am still trying to upload a picture. This site says it is an invalid file. I will try one from my cell phone.

  6. Back To Top    #6

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Hi from Austin I have white plaster turning grey

    You are about to get some comments on your Nature 2.

    Yes, chlorine tablets drive up your CYA. The thing is, drought just means you keep your pool full by adding water. CYA does not evaporate, so you never lost CYA. Believe me, we had drought here last year too.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  7. Back To Top    #7

    Re: Hi from Austin I have white plaster turning grey

    https://plus.google.com/photos/10400011 ... tnu8PC1ngE

    I had to upload the pic to Google. here is the link

  8. Back To Top    #8

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Hi from Austin I have white plaster turning grey

    I suggest you get a good test kit, like the TF-100 from tftestkits.net, and do a full test on your own. I promise you will do a better job than any pool store or test strips. My concern right now is if you have a high CC level.

    Waiting on the Nature 2 comments...
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  9. Back To Top    #9

    Re: Hi from Austin I have white plaster turning grey

    How much should I drain to get rid of the cya?

  10. Back To Top    #10

    Re: Hi from Austin I have white plaster turning grey

    Thanks so much. I just checked that site and will order the kit.

  11. Back To Top    #11

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Hi from Austin I have white plaster turning grey

    I'm surprised nobody with experience with the Nature 2 has chimed in.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  12. Back To Top    #12

    Re: Hi from Austin I have white plaster turning grey

    Do people dislike it. I am keeping the chlorine low as per those directions.

  13. Back To Top    #13

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Hi from Austin I have white plaster turning grey

    The Nature2 system depends on metals, mostly copper, to remove bacteria from the pool. It's not good at keeping algae out of the pool, and the copper can stain your pool and turn blonde hair green. But I would still like someone with more experience to chime in.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  14. Back To Top    #14

    Re: Hi from Austin I have white plaster turning grey

    That is interesting.
    When the pool water has been checked there was no copper detected. I am going to order that pool kit you suggested today.

  15. Back To Top    #15

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: Hi from Austin I have white plaster turning grey

    Nature2 for pools uses copper and silver where the copper does indeed prevent algae if the copper is at a high enough level. The problem is that if the pH gets too high, then that higher copper level can cause metal staining.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  16. Back To Top    #16

    Join Date
    Oct 2011
    Location
    West Monroe, LA
    Posts
    12

    Re: Hi from Austin I have white plaster turning grey

    Was this indeed copper and what did you do to clear it up?
    18500 Gallon 17x34 gunite pool
    Jandy Stealth Pool Pump, Cartridge Filter SWG

Posting Permissions

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