Because most immigrants were poor when they arrived, they often lived on the Lower East Side of Manhattan, where rents for the crowded apartment buildings, called tenements, were low. The Lower East Side Tenement Museum is in a building that used to be a tenement and it tells the story of immigrants in the City.
Change to a 115-grit diamond resin attachment and repeat the procedure as stated in Step 2. This attachment is less harsh than the 400-grit resin bond and will produce a smoother finish. Remember to constantly add water to the surface as you sand the travertine tile.
Dry the tile surfaces with a microfiber or cotton cloth when the travertine is clean, soil- and wax-free. Porous travertine might require up to 72 hours to dry completely. Apply an even coat of the travertine sealer using a soft cloth or lambswool applicator, working in small sections. Porous travertine will require more sealer than polished travertine. Use the grout lines as borders for your work sections. Wait for the first coat to dry completely before adding a second coat of sealer.