I agree with Fred, fans or dehumidifiers would also help dry the floors. If there is moisture in the shower pan it wouldn’t hurt to cut out the grout to make it easier for the moisture to leave the pan. Once dry then re-gout.
Remember where the wall and floor meet use a caulk in those areas, and in the corners of the shower. If you were to grout these areas the grout would crack and the moisture would get back into the shower pan. Also around the drain be sure to caulk , do not grout this area.
John E. Freitag
The Stone and Tile School
Try applying a dry poultice..If this shower has been wet for very long it may have way too much water laying in the pan. I would place some fans in the shower and get the air circulating. Can they not use the shower for a while or is this the main shower.
On Mon, May 10, 2010 at 7:29 PM, Don Semi <firstname.lastname@example.org> wrote:
Limestone shower floor, had very poor caulk lines which led to moisture stain on wall. Drying it out but the floor has staining also, see pic. Went down to 50 grit metal which convinced me there is nothing on surface. Water damage or should I continue trying a poultice. Thanks in advance.
Frederick M. Hueston PhD
My New Radio Show http://www.wnbnetworkwest.com/WnbStoneTileShow.html
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