Did you know excessively cleaning and brushing grout can ruin your grout ? Especially if abrasive or compounds that wear away grout can expedite its demise and need for grout repair. A soft brush with a regular floor cleaning product on occasion is ok. On rare occasions chemicals can be used to deep clean tile and grout. However it should be rinsed and dried well afterward to insure the grout does not get ruined if it lingers. Be aware that acidic cleaners clean grout more effectively. However household acids like vinegar can ruin and dull polished marble or other natural stones like travertine and limestone. When grout is sealed properly the sealed grout is easier to clean and maintain without causing loose or cracked grout. The premium grout sealers are called color sealers and require a professional experienced with color sealing grout. This will insure the proper grout sealing as well as the use of a quality grout color seal.