Hi, Seadog,

That's an easy one. STRIPS!!! They are notoriously innaccurate and will cause you to chase problems that aren't and overlook ones that are. You need to find a good drops-based test kit so you can have an accurate idea of what you have in your pool. With that Frogger, I'd get one that tests for CTA, as well. It might be quite high.

It will be difficult for anyone to give you any meaningful advice based on the strips.

Dave S.