Glad your pool looks good. One caution for you, though. You said that your cya (stabilizer) level is 50, but you are still using pucks in the skimmer. Those pucks will cause your cya to continue to rise. We usually recommend 30-50 for the cya level. If yours gets higher, you'll have to compensate by keeping your chlorine level higher or you'll likely have algae problems. Take a look at the "best guess" chart in the thread at the top of the chlorine forum.