Does anyone who uses a pressure-washer around the house or garden know
if it has a bad effect upon wood which has been treated with wood
preservative? I have a lot of horizontal and vertical wood around this
new house and garden here and I am inclined to apply a few coats of wood
preservative - as soon as the weather allows. However, after the autumn
rains and leaf-fall I expect there will be a build-up of
dirt/grime/slime, in corners particularly, and so I am wondering if
using a pressure-washer will remove a noticeable degree of the
preservative in such places . . . in which case it would be sensible not
to go buying us a pressure-washer!

Thanks.

Eddy.