how soon after putting chlorine in a pool can you go swimming
exists and is an alternate of . If you are talking about just chlorine tablets, there isn't a wait time. For most shocks it is at least 8 hours or until the chlorine comes down to a normal level of 1-3 ppm. For some shocks it is only 15 minutes, but they could also raise the chlorine too high to enter that quickly. You would need to check the water before re-entry.