Below is a great before and after of a concrete pool patio cleaning job Terraclean recently performed. Traditional power washing uses a wand that an operator swings back and forth. Although this tool cleans pretty well, it leaves stripe marks in the concrete that are unsightly. Our rotary surface cleaners clean perfectly evenly, leaving no stripes behind. Anther bonus of this tool, is that during the cleaning process, 99% of the water is kept under the surface cleaner, which prevents the dirty water from going into the pool. So, not only do you get a cleaner patio with Terraclean, but we don’t make your pool dirty in the process.