Apply to Zep Grout Cleaner and Brightener to seams. Note: We recommend wearing chemical resistant gloves for all steps.
Wait two to three minutes for cleaner to penetrate and loosen dirt.
Agitate with a handheld brush or toothbrush. The dirt will rise easily without the need for heavy scrubbing.
Rinse away the dirt with warm water.
Pro Tip: Re-seal grout after brightening to keep lines cleaner for longer