Where grout has deteriorated in terms of colour but not structure, a tube of grout reviver can be used to restore the grout to a clean, bright colour Tools and materials Sponge, sugar soap, grout reviver, cloth

Clean down the tiled surface thoroughly using a sponge and sugar soap solution. When the grout is dry, apply grout reviver along the joints. Check the manufacturer?s guidelines to see when to wipe off the excess grout reviver. Use a damp cloth.

Extracted from DIY- Know How With Show How published by Dorling Kindersley, price £25.00. Copyright © 2006 Dorling Kindersley Ltd, Text copyright © 2006 Julian Cassell and Peter Parham