Do I need to drain my pool prior to cleaning?

Yes and no. It is best for the Pool to be drained to lower the calcium levels in your pool prior to cleaning to alleviate the calcium ring from coming back sooner. And that is the most recommended way, However we can also clean tile that has water still in your pool, we would have to drain the pool below the tile of course. We do all the pool draining ourselves and come out to set the pump the day prior to the cleaning.