Replies

1. 
   davidmeiland | Sep 05, 2006 07:16am | #1

   You're saying that the pigment is leaching out of the grout?

1. 
   stepbuilder | Sep 06, 2006 05:02am | #5

   Besides the white discoloration leaching out there is a residue buildup that appears to be sand. 

1. 
   davidmeiland | Sep 06, 2006 05:37am | #7

   I would post the question with a more detailed description on either the johnbridge.com tile forum or the jlconline.com tile forum.

1. 
   stepbuilder | Sep 06, 2006 05:46am | #8

   OK thanks

2. 
   DanH | Sep 05, 2006 04:40pm | #2

   It may be lime leaching out. A weak acid wash may help.

   Eventually (a year or two) the amount of lime leaching out will diminish.

   If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy. --James Madison
1. 
   davidmeiland | Sep 05, 2006 05:12pm | #3

   I wonder if a couple of coats of impregnator would not help this?

1. 
   DanH | Sep 05, 2006 05:27pm | #4

   Yeah, a grout sealer will reduce leaching, though it can also hold in moisture and make the area more susceptable to frost spalling, if frost is possible there.
   If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy. --James Madison

1. 
   stepbuilder | Sep 06, 2006 05:06am | #6

   This house is located in the south but is susceptable to frost and freezing conditions. Thanks for the input

3. 
   vinniegoombatz | Sep 07, 2006 01:40am | #9

    

   if frost exists in winter u should be using porcelain tiles, ceramic is subject to spalling out w freeze/thaw    i'd try a sealer, but use a really high quality product    if sand is coming up, grout may be too soupy when applying, or being used too long and it has become hot    try grouting smaller areas w proper mix if u think either is a concern

    

    

1. 
   stepbuilder | Oct 31, 2006 04:55am | #10

   Thanks, that describes the situation pretty close. I'll try sealing the deck.