What is the reason for doing a drain and refill over a few days vs doing it all at once? Seems like the latter would be more effective as far as watter usage.

My water is almost clear now. How long after I have it clear should I keep it at shock level? I want to be sure I have the algae under control. It seems like the chlorine isn't lasting long and it is still using quite a bit. Testing using the shot glass method for now.

We also had an odd phenomenon happen here last night where droplets of water were falling out of the sky. I have seen this happen before, I think it's called "ran" or something like that.