Hi Sparky,

I like the work of Jackson Galaxy from the Animal Planet programme, My Cat From Hell. He is a Cat Behaviourist who has marked success.

For peeing problems he states there should always be at least one more litter tray than there are cats, that any area which is pee'd on must be disinfected and deodourised immediately to break the 'this is a toilet' cycle. There are deodourisers on the Market. Backing up and marking up a wall is possibly a sign of Territorial Insecurity.

A change of cat litter may be an idea, Natural, smaller grain, Wood, Clay? And a change depending whether you have covered/uncovered trays to the opposite.

On his Programmes in the past 4 years we have seen him work with many owners to resolve just this problem - with peeing and pooping. It does take weeks of perseverance and trials, but every case has been successful.

I wish you and your menagerie luck,

Dave.