What will it look like when the powerwashing is done?

                                Dirty Planterbox        Clean Planterbox

What will it look like when the powerwashing is done?

There is ALWAYS a brightened color change, because a thick layer of the dark, dingy color of bacterial damage, sun damage, greying and seasonal stresses are removed with the high-pressure water.  The exact degree of lightening to be expected is dependent upon the wood type, the age and the condition of the wood.