Actually, someone suggested I 'tar' the fence to preserve it,
so I might try that at some point......
I've tried removing my own creosote 'attempt' using hot water
and caustic soda, so far with disappointing results especially
as the patio slabs got stained in the process.
Oh well, out comes the blowtorch and wire brush to try and
clean those up now!
It's never ending!

Alan