Peter Sola 

The above comment is bandied about in the selling of consumer products however in this case it is the truth. My deck (trex) was a mess. I followed the directions to the letter and stuck with the recommendations for several applications. Yes, I used other cleaners first. This spring I reached the proactive stage of using Corte. From now on the job, 2 or 3x a year, will be very easy. Peter Sola Columbis, MD