[QUOTE]Originally posted by ChrisH
[B]

Areas in which a cat sprays should be thouroughly cleaned to prevent `top-up` spraying as the scent weakens. Never use cleaning products containing ammonia or chlorine as both of these compounds are constituents of cat urine and the cat may perceive them as a rival marker and deliberately respray in response. The best cleaning agent is a warm solution of biological washing powder, which will digest protein in the urine. Rinse and allow to dry, then (assuming we are not talking about antique furniture) wipe or spray with alcohol, such as surgical spirit.

Would surgical spirit not take the colour out of a carpet ???