How to clean the white grout in the shower
It is common to see the grouted bath tiles of stains, and it seems more evident if the color of the grout is white. The stains on the bathroom tiles are not only from mold formation. It could also be due to soap residue, dirt or hard water deposits. Simple cleaning methods help remove stains and leave the white grout clean.
Instructions
1 Spray the grout cleaner into the grout and wait 10 minutes. Special Grout Cleaners can be used for white grouting. Use the cleaning brush, and gently rub the grout.
2 Use warm water to clean the grout. This will remove the soap scum, dirt and some of the fungus. Repeat the first step and the second step if necessary.
3 Examine the grout closely. Grout may still have a grayish-green appearance. This is probably some mold that is covered by hard water deposits and is clearly visible in a white cement grout.
4 Pour the vinegar enough to soak the paper towel. Excess vinegar may break tile grout. Use a high-strength paper towel so it won't tear when it gets wet.
5 Spread the vinegar-soaked paper towels to cover the tiled floor and the vertical tiles. Wet paper towels usually adhere to the surface of the vertical tile, too. Vinegar is acidic, and works well to dissolve the alkaline water tank.
6 Check the paper towel every hour to make sure it is still soaked in vinegar. If it becomes dry then remove the paper towel and use another towel with vinegar. Vinegar is a very mild acid, and it acts slowly in hard water deposits.
7 Lift a piece of paper towel and check for an improvement in grout color or see melting deposits. If so, then indicate that the tile is ready for the next step. If the grout still looks dirty, then put the paper towel back, and let it rest on the tile for another two hours. It could take up to eight hours or even days to completely remove hard water reservoir.
8 Pull the paper towel away from the tile, and gently rub the deposits. Clean the tiles with tap water.