I built a deck just behind my house about 8 years ago. I built it out of pressure treated pine and it has held up very well except for normal weathering. Recently I extended it past the back door to make it more accessible. The result is very pleasing except that the new wood and weathered old wood do not match. We have decided to coat everything with a wood preservative to make it uniform and extend its life. Before we do that we need to scrub the weathered wood to allow the preservative to adhere properly.
David has a portable power washer that he was kind enough to bring over. He even offered to wash it for me in exchange for dinner. I sat in a comfortable chair and
It is tempting to use a clear treatment to see the color of the wood but the experts say that such treatments need to be repeated every year. A coating with pigment should last 5 or 6 years before it needs to be reapplied. This morning we bought a 5 gallon bucket of Home Depot's finest in "Harbor Gray". After it is given two coats it will really look nice.
I will report back when the project is finished. All I can say to David is thank you for your HELP!