Lemme eliminate the easy stuff, first. That is, the stuff I can't answer: bees. The only idea I could come up with is to see if they are using your pool as a water source. If they are, you might could put a bird bath between your pool, and their home, and see if they'd use that, instead. Just a W.A.G. though.

About the stuff you're using:

"Frog Bam" (where do they get these names??) => MSDS at ChemQuip (Adobe PDF file)
-- Copper algicide --

"Bac-Pac" => MSDS at ChemQuip (Adobe PDF file)
-- Trichlor pack --

"Mineral Reservoir" => MSDS at ChemQuip (Adobe PDF file)
-- Insoluble silver chloride in marble dust --

What stuff does:

UV Ozonator - probably does nothing if it's a flow through unit; if it's has an air pump or venturi it MAY restrict flow, but it PROBABLY aerates the pool enough to help keep alkalinity low -- possibly not a bad thing for you.

Bac-Pac - overpriced trichlor.

Mineral Reservoir - dumps silver chloride (black) around your pool. If they've been able to do that without staining your pool visibly, the silver that has adhered to the pool sides *could* (GUESSING, only) make it hard for algae to get started.


About scale -- It's my understanding that water in the Phoenix area is often a mineral soup, and that in particular, it contains magnesium, silica, and other stuff. Without knowing what's in your water (or scale) I'm not sure what to suggest. Silica is often ground off; I don't know if there's a better way. Calcium carbonate will come off with acid.

A good place to start would be to get a water analysis from your water company. That will give you some info about what's going IN to your pool, which in turn would give us all clues about what's ON your pool.

PoolDoc