I don't know for sure that's why I'm asking because I need to know! I've been CPO certified for 15 years every pool I have taken care of I've done very well with but not by myself. My most recent endeavor is 50000 gallons it has been drained every year and refilled for the season. I do not believe this to be practical North correct for many reasons. But I do not know for sure and so I am asking for help I welcome any information that anyone is willing to put forth please and thank you.