I have a river rock patio(small pebbles) around my pool/spa combo. It's been resealed a number of times over the years, the last time being sealed poorly. I want to do the job myself this time. Pressure washing shouldn't be a problem. It's the sealing where I could use some advice. I'm not sure what to use as a sealer. The big hardware chains sell some stuff but I don't have confidence in their products unless I'm buying hardware and the like. Anybody know something about sealers for this type of pool deck?