For pools. Pool & spa. 6 in 1 formula. Kills and prevents algae with algae-fighting formula. Kills bacteria. Improves filter performance. Swim-ready in 15 minutes (refer to the re-entry statement on the back panel for further guidance). Fast-dissolving. Crystal clear water. Clorox Pool: Free App water testing & solutions center. cloroxpool.com. how2recycle.info. Questions? Pool care tips? 1-800-Sos-Pool.