My house has an original 1930's shower stall- fully tiled on floor and walls. On the floor of the stall, there are 4 hairline cracks- each crack goes through several tiles. They are only very thin hairline cracks- no tile has chipped out. There is a small amount of soap residue buildup in the cracks.
What should I use to seal these cracks so I don't have to worry about water getting through to the sub-floor? I doubt there is a plastic liner under the stall due to the age.
Also, what can I use to clean the soap residue out before I seal the tile and how long should I let the stall dry out before I seal the cracks?
Thanks so much for any advice!
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