I'm planning a week-long vacation and I'm trying to figure out what we need to do to prevent our pool from turning into a swamp while we are away. I do not feel comfortable leaving the pump running while we are away since our pool is surrounded by trees, and I don't know anyone who lives nearby who can come check on the pool daily and dump out the skimmer basket. I plan on getting the pool up to shock level before I leave, and I can probably get an older family member to come here after 3 days to pour in some chlorine in front of a return and run the pump for a short period of time to distribute the chlorine around the pool. If I can convince this family member to do this, how long would he need to run the pump after adding the chlorine before he could shut it off and leave? (I don't want to make him stay here any longer than necessary.) If he came after 3 days, should I just give him enough chlorine to get the pool to shock level since most of the chlorine will have probably burned off after 3 days? I only lose 2 ppms of chlorine right now but I assume I will lose more than that if the pump is not running. Has anyone ever calculated how much faster chlorine burns off if the pump is not running? I don't want to teach my family member how to test the chlorine level so I will have to estimate how much chlorine I will need and leave it for him.