Our expert says:
It would be advisable to take the cat to the vet for a check-up to rule out any medical conditions. If the cat is healthy, it is a behavioural issue. It may also be linked to changes outside of home, e.g. a new cat in the neighbourhood. The couch must be cleaned well with a product that does not contain ammonia. Special formulations to clean pet urine are available. The use of a water pistol to spray the cat, or a can filled with rocks that is shaken to make a noise, are two things that may be used to interrupt the unwanted behaviour when caught in the act of urinating on the couch. When the cat uses the sand box, the cat must be rewarded with a favourite snack, as this will serve as positive reinforcement of the wanted behaviour. (Answered by Dr Sunelle Strydom)
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