Does everyone use algaecide before you close? One of the most appealing things about TFP protocol is not needing to use algaecide. I am not big on chemicals so would love to skip this! If it's balanced and opened before it gets warm outside (I am in the Northeast and my pool gets very little direct sun), can I skip this? I actually have rarely used it over the years and my pool is always crystal clear when I take the cover off.