I'm going to paint the concrete deck around the pool. It's never been painted. I'm considering the Quickrete Multisurface Concrete Sealer. They recommend cleaning first with their product called Bond Lock which cleans and etches. I'm concerned about getting some of this product in the pool water and i'm looking for a safer alternative. I will pressure wash the surface first. The Quickrete people suggested I could use tri-sodium phosphate; would that be harmful if it got in the water? The other alternative I've considered is bleach, to get rid of any remaining organic materials.
Also, does anyone recommend an alternative to the Quickrete Sealer? I'm not interested in an expensive process - just something I can paint on.