I am renovating my bathroom. The tile is in good shape, but the original white grout is dark looking in spots. I would like to clean and seals the grout. The grout is the kind without sand. Does anyone have ideas on cleaning white grout? Any suggestions for sealing the grout once it is cleaned?
Get yourself a toothbrush and some bleach and alot of elbow grease. Keep rinsing the cleaned areas as you go along. If that doesn't clean it to your satisfaction you can also use a mixture of 2 chemicals that you can buy at thechemistrystore, sodium percarbonate and oxalic acid. Sodium percarbonate is pure oxy clean, straight up, and oxalic acid is used as a brightener.