Grout is porous, allowing contamination to penetrate the surface and become permanently discolored and stained.

Harsh cleaners such as acid and bleach only make the problem worse by eating away pores in the grout, thereby compounding the problem and requiring cleaning more often, or worse, degrading the grout to the point where water penetrates through, causing very costly dry rot repairs.

In wet places such as showers, molds, mildew, algae, bacteria, and fungus grow deep inside the grout. Aside from being unsightly, they pose a threat to our health. Household cleaners only clean the surface allowing them to grow back and continue to spread.