This weekend I will be away for approximately three days. I am leaving Friday morning coming back late Sunday night. I am not sure what to do in terms of keeping the pool up and running while I am gone. I don't want to shut off the pump for three days as the pool will get filthy so I plan to run it, but in terms of chemicals, I plan on cleaning the pool and adding my chlorine on Friday morning but should I maybe bring the chlorine up to shock level before I go? It will be a warm and sunny weekend and I am sure that the chlorine will burn up over the three days I am gone. I do have an automatic chlorinator on my system but I don't use it. I could, but the pucks would mess with my CYA and I have it where I want it now (its at 40). Any thoughts?