Pool under gazebo this season - low CL loss?

Macboy

Bronze Supporter
May 18, 2018
100
Edmonton, Alberta
Hey all, for various reasons - primarily the price tag (free) we've put a gazebo up over our little pool this season. We're about a week into the season and I'm noticing a significantly lower chlorine demand than last season. Is this possibly due to the much reduced UV exposure? Or am I just dreaming and it's just because it's a new fill and the "stuff" isn't in the water yet?