Dog urine will stain and place scent on any surface. Luckily, ceramic tile is much easier to clean than carpet and fabric surfaces. The urine will wipe off the tile surface and, with a little effort, come free from the grout surface. Using natural methods and commercial products to neutralize the scent and clean the urine will help prevent future marking on the spot.
Catching your dog in the act and cleaning the urine immediately is the most effective approach. Although finding the urine fresh is not always possible, it allows cleaning before the scent penetrates and sticks to the tile and grout. Lay paper towels on the urine and lightly blot to absorb the liquid. Do not rub the urine into the tile; focus on absorption.
Removing Stains from Tile Surfaces
Soak a towel with white vinegar and lay it on the stain for 10 minutes. The vinegar acts as a scent neutralizer. Also, pour a little extra on the grout before laying the towel down. The towel will release the vinegar while preventing it from flowing off the spot. After several minutes, wipe the tile down with the towel to remove any sticky urine stains that the initial blotting did not absorb. Repeat the process with hydrogen peroxide to disinfect the stain.
Cleaning Grout Surfaces
Grout is the big trouble spot with urine. The material is moderately porous and old urine will work into the cracks. Combine baking soda with water to create a paste. Rub the paste on the grout and scrub with an old toothbrush until the grout is clean. Pour water over the grout and wipe down with a towel to finish the process.
Commercial Enymatic Cleaners
Enzymatic cleaners are effective for difficult urine stains and odors. The enzymes are living organisms that actually react with the urine to break down and chemically process the odor and stain. Enzymatic cleaners are often citrus based and are an effective last resort for stains outlasting common household treatments.
Regular marking behavior is an issue with many dogs. Thorough cleaning will remove the scent and reduce the odds of future marking. Make the tile inaccessible when dogs mark repeatedly in the same area. Also consider spaying or neutering the dog to prevent territorial and dominance behaviors. Monitor your dog's behavior and put him/her outside regularly to encourage urination outdoors.