I'm looking at replacing my QuikChlor system with an Aqua Rite. My pool is apprx 12,800 gals---should I go with the 15k or 25k system? Would going with a larger system (over-sizing) take some pressure off the cell? Price isn't an issue, I want what will work best w/the pool volume.

The purpose for this whole drill is 1) QuikChlor cells are EXPENSIVE 2) I prefer the Aqua Rite's features and industry background (and lower cell cost).