I am so grateful for the advice which has me maintaining my pool on my own all summer. CYA 40. During this hot spell I have Been targeting FC 8 rather than 7 and it usually ends up losing 3-3.5 so the FC is 4.5-5. If I am going away for 2 nights and I bring it up to a SLAM level of 16 before I leave it should only lose about 7 and be around 9 and be ok in theory. Just wondering if I were to go away longer another time, is it ever recommended to raise FC above the SLAM level say to 20 so that you maintain it above the minimum?