Removing an oil base stain such as an olympic what I had previously on my rough cedar siding was no problem and thirteen years ago I used an acrylic transparent stain and need to remove and apply a new finish. The acrylic stain really held up well and is just starting to fail on the West and South sides of the house. The East and North Look like they were stained yesterday and have held up very well. But just pressure washing I don't think will remove the finish. Has any one came across a similar situation? The Acrylic stain I used was a Sears product that is no longer avaialble but I sure wish it was. It held up well for about 13 years.