Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 2 12 LastLast
Results 1 to 20 of 21

Thread: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

  1. Back To Top    #1

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    Hi! I have just got my cloudy pool "clearer" enough that I can nearly see the bottom. This is a HUGE improvement from the swamp that it was. Now I see there is gunk on the walls of the pool, crusty, hard. What do I do (besides scrubbing) - which I have done, but wondering if there is a product I should try. Thanks
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

  2. Back To Top    #2

    Join Date
    May 2016
    Location
    Cincinnati, OH
    Posts
    381

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    Quote Originally Posted by Jana D View Post
    ... Now I see there is gunk on the walls of the pool, crusty, hard. What do I do (besides scrubbing) - which I have done, but wondering if there is a product I should try. Thanks
    I had what sounds similar, it was off white in color, thin layer. very hard if not impossible to remove. What color is yours? I dont have any idea for product though, wish i did. Good luck.
    30000 gal inground vinyl liner;sand filter w/glass media, nuvo uv, TF-100 test kit; 25 years on Baquacil, converted to TFP chlorine in 2016

  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,085

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    It sounds like calcium scale but you can't guess at it and hope it goes away....you have to identify it. Can you post a set of current test results?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    My readings from my analysis at the pool store on May 23:

    temp 80
    CYA 90
    Tot chlorine 6.5 (had just shocked)
    free chlor 6.5
    pH 7.5
    total alk 108
    total hardness 102

    I'm new to test kits and I do have one but it is older (so I don't know how good it still is, though it's been kept in like new shape)
    But when I did a test on my own, the cal hardness was high (if my readings were accurate)
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

  5. Back To Top    #5

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    And I'm concerned now too because my kids were in the pool ....and that's how we noticed it! My son said the wall feels "gross" and "bumpy". Now I'm worried because I let them swim!
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

  6. Back To Top    #6
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    Calcium Scale is like grow-your-own sandpaper. Severe cases can scrape the skin right off any elbows or knees that bang against it. Instant roadrash.

    I'd trust your old test kit's "high" CH readings over the pool store's.

    If you drive the CSI down to negative numbers by lowering TA and pH, you can possibly dissolve the scale. It will at least soften it a bit so scrubbing will get it off. But to do that, you're going to need a test kit you can trust right there onsite.
    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!

  7. Back To Top    #7

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    My concern about lowering my pH though is that it will cause an algae bloom AGAIN! Question? Could my city water be the problem? I only ask because our beautiful spring water was changed over to a river that is...well nasty. Our tub and toilet are orange tinged!
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

  8. Back To Top    #8
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    pH has nothing to do with algae. Chlorine levels control algae.

    Orange tinge means Iron, which is a whole 'nother problem. It could tint the Calcium scale or stan the pool walls or make the water look greenish, but it also doesn't affect algae.
    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!

  9. Back To Top    #9

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    Ok got it. So I realize this answer is probably on TFP but what chemical do I use to drive down pH and TA?
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

  10. Back To Top    #10
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    More on managing scale here, Pool School - Calcium Scaling
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  11. Back To Top    #11

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    The only reliable solution for removing calcium scaling is a full drain and acid wash.
    What? I've got to completely drain the pool? Please say it isn't so. I think I'm going to cry
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

  12. Back To Top    #12
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    I would try other steps first. Draining a vinyl pool often results in liners shifting and shrinking and needing to be replaced.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  13. Back To Top    #13
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    Here is the page for Pool School - Recommended Pool Chemicals

    Go to Poolmath and enter your test results in Now and change PH and TA in Target to see hpw they impact CSI. Keeping it at -0.6 to -0.8 and brushing as often as you can stand to is the first thing to try. It will take a long time, about as long as the scale has been building up. If there are very rough places you can sand them with wet/dry sandpaper to smooth them.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  14. Back To Top    #14

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    Oh thank you! So glad to read this. I was sweating bullets. Well I've got to add (so hopefully anybody reading this it will help) we just got our plastic white steps out....and a bunch of algae and stuff came out - So I believe that has been a big part of the problem, not the calcium scaling really, but nonetheless part of the problem.
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

  15. Back To Top    #15
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  16. Back To Top    #16

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    Oh I know. Been doing that. But realized we were fighting a losing battle since all the gunk was under the stairs. I'm stumped though about the calcium scaling. Could our hard water be contributing? If so, then draining and refilling probably won't help, will it? Something is obviously not right.

    Btw, just did a test and my pH is 7.6 and CH is 110

    But from what I've read clouding and scaling happens when CH is too high so...
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

  17. Back To Top    #17
    Mod Squad zea3's Avatar
    Join Date
    Jul 2009
    Location
    Houston, Texas
    Posts
    9,202

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    If the pH had been high and the TA had been high, it is possible the the CH was higher but fell out of solution and deposited on the surfaces of the pool. You can lower the pH to around 7.2 and lower to TA to the 70-90 range to see if that helps to release the calcium from the walls. Sequestrant for metals and calcium can also help remove calcium scale.
    TFP Moderator
    Helpful links: TF Test Kits,TFP Pool School, PoolMath
    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
    Love TFP? Become a
    TFP Supporter!

  18. Back To Top    #18

    Join Date
    Jun 2014
    Location
    Rogers, AR
    Posts
    412

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    My home was a foreclosure so I knew nothing about my pool's history. My light fixture was covered in scale. I ordered a new light and my pool company never came out to replace it.

    So one day my daughter and I got in and scrubbed the dickens out of it. My pool clouded really bad but a lot of the stuff was coming off. I asked about it on here and Richard told me to keep the TA down (mine was on the lower side anyway). It didn't all come off but over time and following TFP methods the light has shed it's skin and looks like a champ.

    Listen to Richard...he knows his stuff.
    16x32 IG rectangular 21,800k new vinyl liner 2014, Triton II TR 50 sand Filter, Pentair 3/4 hsp whisperflow pump, 3 returns, TF100 test kit w/speedstir. Maytronics s 300i robot.

  19. Back To Top    #19
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    Just fyi, draining and acid wash is only applicable for plaster pools. It won't work in a vinyl pool.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  20. Back To Top    #20

    Join Date
    May 2016
    Location
    Springville/Alabama
    Posts
    21

    Re: Scaly Crusty Gross Stuff on Vinyl Walls of Pool

    So should I use muriatic acid or sequestrant (whatever that is) for metals and calcium?
    Jana D

    Pool owner for six years. Above ground. 15 x 30 oval. Vinyl liner. About 12,000 gallons (per online estimation I found). Hayward pump/sand filter. Learning about the BBB method. Can't stand algae! New to test kits and learning those too!

Page 1 of 2 12 LastLast

Posting Permissions

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