My kids have very sensitive skin so we can only use sunscreen with physical blockers, such as Titanium Dioxide and Zinc Oxide. The problem is that I think the sunscreen is making the pool a little cloudy. Is there anything I can do about this? We have a Intex sand filter 2100 gal per hour and a SWG. Also, we typically have 4 to 5 people in the pool wearing sunscreen with physical blockers. Thanks!!