Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 8 of 8

Thread: White Deposit in grout lines next to waterfall

  1. Back To Top    #1
    texasdad's Avatar
    Join Date
    Jun 2011
    Location
    DFW Metro
    Posts
    186

    White Deposit in grout lines next to waterfall

    I have a white deposit forming in the grout lines only along side the waterfall. This is only happening were there is no standing or flowing water but area is wet from waterfall splash. It is only in grout line and nit on flagstone. It runs down out o grout onto tile.
    I cleaned it off one by spraying with diluted muratic. It quickly came back.

    What is causing it? Any way to stop it?

    Test numbers:
    fc: 6
    Ph: 7.6 (about to add acid to bring to 7.4)
    ta: 60 (to low, I'm going to add baking soda)
    ch: 290 (on the hard side but not too high?)
    Cya: 60
    13k gallon IG gunite pool
    Jandy 2 speed pump
    Jandy cartridge filter
    Stenner Pump and tank

  2. Back To Top    #2
    texasdad's Avatar
    Join Date
    Jun 2011
    Location
    DFW Metro
    Posts
    186

    Re: White Deposit in grout lines next to waterfall

    I should add it looks to me like the deposit is leaching out of grout instead of being deposited by pool water but I'm not certain of that.
    a picture here would be great I'll try to pst one later today.
    13k gallon IG gunite pool
    Jandy 2 speed pump
    Jandy cartridge filter
    Stenner Pump and tank

  3. Back To Top    #3

    Re: White Deposit in grout lines next to waterfall

    That is called inflorescence. Yes, it is leaching out. I've been told that sealing the stones or maybe the grout is needed.
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  4. Back To Top    #4
    texasdad's Avatar
    Join Date
    Jun 2011
    Location
    DFW Metro
    Posts
    186

    Re: White Deposit in grout lines next to waterfall

    I'm not familiar with inflorescence - just typed it into google and all results have to do with flowers?

    This is the first time I've posted pics. Lets see if they show up.........

    https://picasaweb.google.com/1121019057 ... 2587595234

    https://picasaweb.google.com/1121019057 ... 4299995298

    https://picasaweb.google.com/1121019057 ... 5845395282
    13k gallon IG gunite pool
    Jandy 2 speed pump
    Jandy cartridge filter
    Stenner Pump and tank

  5. Back To Top    #5
    CUTiger78's Avatar
    Join Date
    May 2009
    Location
    NoVA
    Posts
    460

    Re: White Deposit in grout lines next to waterfall

    Quote Originally Posted by texasdad
    This is the first time I've posted pics. Lets see if they show up.........
    Nothing to see here. Move along....

    BTW, it's probably efflorescence.
    36K gallon 42X22 gunite/plaster kidney-shaped IG;
    1 hp Hayward Super Pump (new in 2012);
    Hayward S244T sand filter w/ Zeosand (both new in 2009);
    175K BTU LAARS Lite2 LG natural gas heater; Polaris 380;
    TF-100 test kit.

  6. Back To Top    #6

    Re: White Deposit in grout lines next to waterfall

    Quote Originally Posted by texasdad
    I'm not familiar with inflorescence - just typed it into google and all results have to do with flowers?
    Ha, my horticulture background apparently. Well, maybe eff.... whatever
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  7. Back To Top    #7
    texasdad's Avatar
    Join Date
    Jun 2011
    Location
    DFW Metro
    Posts
    186

    Re: White Deposit in grout lines next to waterfall

    efflorescence - just tried that in google can got responses that make more sense.
    That is whats going on here...... now what to do about it? Sealing is the best option;

    Any suggestions on what sealer to use on the grout and flagstone. I guess the same stuff people with salt water pools use?
    13k gallon IG gunite pool
    Jandy 2 speed pump
    Jandy cartridge filter
    Stenner Pump and tank

  8. Back To Top    #8

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,077

    Re: White Deposit in grout lines next to waterfall

    Any suggestions on what sealer to use on the grout and flagstone.
    Whatever type sealer you use, it may or may not work. It is difficult to get it to stop since it is coming from behind the grout and will typically lift or or "push out" sealer. That said, it is about your only option so give it a try. Home depot sells an expensive grout sealer who's name I can't remember but comes in a dark green plastic bottle.

    You could just clean it off with acid and see if it continues but I think I would celan it and then seal it and cross my fingers.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

Posting Permissions

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