We have a local pool company scheduled to close our pool next Monday. Although we wouldnt have minded keeping it open a bit longer for the season, we had limited options from this company. This weekend is going be 80+ degrees and we were planning to have friends over on Sunday for one last hurrah, before we close the pool. We like to keep our pool temp around 86-88 degrees. We were planning to bring the chlorine level up to shock level after our party. I've been a reader of forum for sometime, but for some reason hadnt really looked at the "pool closing" threads before and the correct closing process (we should be waiting until pool temp is below 60, etc). Since our pool is still going to be warm on closing day, Im wondering can I still test the water (after the pool is officially closed) and add additional chlorine if needed (to prevent an algae growth?... What would be the problem with adding chlorine to the water when the pump is no longer running for the season? (Im assuming it would just be a lack of circulating that chlorine around adequately in the pool. But is there any risk to doing damage by doing this?). I apologize if my questions sounds unintelligent. Im just not very familiar with this process.