Tim Watts wrote:
davej
wibbled on Tuesday 06 April 2010 15:16

SBK

Found it - cool, thanks.

And as strange as it sounds adding a small amount of copper sulphate to
it after a month or so will speed up the decay of the wood - assuming
that is what you want to happen. I levered mine out after it had been
weakened sufficiently but close to drains that isn't a good idea.

A trace of copper salt inhibits the natural fungicides in the wood.

Regards,
Martin Brown