How Cleaning Grout?
Use 1 part bleach to 10 parts water on white grout. Whiten discolored white grout by mixing a solution of 1 part bleach to 10 parts water. Scrub grout with the solution and thoroughly wipe all bleach off with a water dampened sponge. Dry the area completely by wiping with a clean cloth and directing a fan on it.
Disinfect tiles grout with a vinegar and water solution. Mix a cleaning solution of one part water to one part white vinegar to clean tiles grout. Dip a scrub brush in the cleaner, scrub for about 30 seconds and rinse all vinegar off your stone with a water dampened sponge. Repeat with vinegar solution and water, until your grout is clean as a whistle. Dry the area with a clean, soft cloth.
Dissolve tile grease with acetone. Cooking grease, milk spills and makeup splatters don’t stand a chance against acetone. Dip a cotton ball in a small amount of acetone and lightly dab any oil-based stains. Immediately flush the area with water from a dampened sponge.
Wash water-based stains on tiles with hydrogen peroxide and ammonia. Get rid of stubborn stains from coffee, tea or pet urine with hydrogen peroxide and ammonia. Rub a small amount of 12% hydrogen peroxide and a drop of ammonia on stains with a soft cloth or sponge. Rinse the area immediately with a water dampened sponge.
Use a poultice on resistant stains. Stains that do not want to disappear with regular cleaning and stain removal techniques require the use of a poultice. Make a paste out of cleaner and a powder, like talc, powdered chalk or dry kaolin clay. Spread the mixture over stains a 1⁄4 to 1⁄2 inch (0.64 to 1.27 cm) thick, cover with plastic wrap, and let it sit for 24 to 48 hours. Mix a 1⁄2 cup (120 mL) baking soda with 1 tablespoon (15 mL) water for oil stains. Mix a 1⁄2 cup (120 mL) talc with 1 tablespoon (15 mL) acetone for water-based stains.



Removing
Remove the grout around the
Hit the 
Some hammer chisels are handheld so they can be used on walls or floors, while others are larger and made just for floors. Pick the right hammer chisel for your job. Hammer chisel rentals usually cost around $50-$60 USD per day.
Put on safety glasses and earplugs before you start working. Since hammer chisels break apart your
Hold the end of the chisel against the edge of your
Turn on the hammer chisel to break apart your 




