Simon C. . gurgled happily, sounding much like they were
saying:

I normally like cats but this one is trying my patience! Scabby feral
tom cat is spraying right next to our side door. A mixture of bleach and
bio washing powder shifts the smell OK ish, but it just seems to
encourage it to re-mark its 'territory'. Any way to deter?

A vet with two bricks.