What is this in the bathroom tile grout?

John Wood
by John Wood
The grout in the bathroom tile has a white residue. Does anyone know what is it and how to fix it?
q whats this in the bathroom tile grout , bathroom ideas, cleaning tips, house cleaning, tiling
  18 answers
  • Jean Aranson Jean Aranson on Jul 19, 2016
    Do you have a water softener system that has salt?

  • Cynlane55 Cynlane55 on Jul 19, 2016
    Mold clean it with bleach

  • Katrina Warren Katrina Warren on Jul 20, 2016
    Looks like hardness / mineral deposits from hard water. Lime Away, or CLR should get rid of it with a little added scrubbing.

  • Mcg4157699 Mcg4157699 on Jul 20, 2016
    You need a filter for you water that takes out the limescale and other stuff, it will eventually wash away after using clean water for a while, by the way, if tis is on your tiles i hope you don't drink the same water ?

    • Patricia Norman Patricia Norman on Jul 20, 2016
      My husband drills water wells. The limescale is from limestone which makes the water hard. You might want a water softener. As far as drinking the water hard water will not hurt you.

  • Janet Pizaro Janet Pizaro on Jul 20, 2016

  • Lana Ryland Lana Ryland on Jul 20, 2016
    Looks to be mineral and salt deposits leaching thru. Best thing to do is paint the grout lines... completely seals the grout and it doesnt come back. Makes your whole room look larger if you use a light colored acrilyic ( sp?) paint. Very easy to do,. I flip houses and do this in every house I flip... bathrooms and kitchen. Doesn't come off, never had a problem, easy to clean.

  • Bea7222265 Bea7222265 on Jul 20, 2016
    I;m sure its called Crafters Acrylic You just paint it into the grout

  • Cj Cj on Jul 20, 2016
    Ahhh, I just dealt with this one while remodeling whole headache house with more to go. But the bathroom grout looks like hard water, First try a baking soda and peroxide paste leave it in awhile see if it comes off. If that doesn't work, there's this stuff called " The Works" use a lot of ventilation glove up and mask or bandana so your not breathing this stuff in. To get your grout color back, road trip to Lowes. Paint section get a small container of concrete paint, headache #2 tape all the squares off and lightly brush your color back into the grout. Do this as last resort. I actually had to dig out grout in 1 bathroom and just redid the whole thing rather than keep breathing the Works cleaner. Which worked but way big job. Good luck

  • Lana Ryland Lana Ryland on Jul 21, 2016
    Yep..Crafters Acrylic paint. Cost abourt $.80 a bottle with a coupon from Hobby Lobby. One bottle goes a long way. I never had an issue with it washing off or wearing off. It gets down into the grout line and seals it so no stains on light colored grout. Gives such a "clean" look . About to do this in my current house.

  • TONYA TONYA on Jul 22, 2016
    I would simply try a tile and grout sealer found at most larger hardware stores .

  • Elena Elena on Jul 24, 2016
    Thank you for your advise I will try with the acrylic paint.

  • Johnchip Johnchip on Jul 24, 2016
    Looks like calcium build up from the hard water. Use a metal scrubby and seal.

  • Evelyn Haralson Jackson Evelyn Haralson Jackson on Jul 25, 2016
    I live in San Antonio, Texas where we have extremely hard water & calcium/limestonebuild-up is the norm. Vinegar is excellent at removing hard water residue. I mix mine 50/50 with Dawn dish washing soap, use it in a spray bottle for easier application and let it sit for at least an hour. Usually just rinse with fresh water & it's clean, but you can use the scrubbing side of a kitchen sponge if build-up is really stubborn. The regular 5% vinegar acidity is usually enough to break-down the calcification, but if not, try the 9%, available in most grocery stores in the same location as regular vinegar.

  • Lizzy L Lizzy L on Jul 25, 2016
    I used Polyblend Grout Renew from Home Depot and it worked great.

  • Sri8158813 Sri8158813 on Aug 01, 2016
    how can i remove grout from tiles ?

  • Fay Fay on Sep 25, 2016
    Looks like a hard water stain

  • Shirley Shirley on Nov 08, 2016
    I have the same problem and am looking for a solution.