Be sure to watch your pH...Tri-chlor is VERY acidic and will push your pH down. You can add 1/4 box (about a lb) of 20 Mule Team Borax when you see pH go below 7.2. It's the best thing for raising pH and far cheaper than the pool store chems (which are merely overpriced Arm & Hammer WASHING Soda--not baking soda).

Carl