We installed ceramic tile with tile grout and the grout turned from black to grey in splotched areas.
2007-01-04 07:59:18 · 3 answers · asked by jazmandaz 1 in Home & Garden ➔ Other - Home & Garden
It is a reaction to moisture. I have had luck treating it with a 1/2 water 1/2 vinegar solution to stop the reaction and then sealing the grout with a good grout sealer. If there is any mold, treat with bleach or a commercial product like X14.
2007-01-04 08:04:01 · answer #1 · answered by lumberman57 4 · 0⤊ 0⤋
Do you have concrete walls, by chance? This happens mostly with concrete. The vinager/water solution, as mentioned above is the best cleaning solution, but will not stop the problem from continuing. More drastic waterproofing is most likely necessary. And without more details, I wouldn't dare give advice as to what might be necessary.
Good luck
2007-01-07 11:48:22 · answer #2 · answered by ButtUglyJeff 2 · 0⤊ 0⤋
EFFERVESCENCE - YOU SPILLED A BUBBLE DRINK.....
EFFLORESSENCE - MOISTURE PASSING THROUGH MASONRY / CONCRETE CARRYING SALTS - WHITE POWDER - IF YOU'RE GETTING BLACK & GRAY, YOU PROBABLY HAVE AN ACTIVE LEAK SOMEWHERE CLOSE!
2007-01-04 16:05:26 · answer #3 · answered by Bonno 6 · 0⤊ 0⤋