Please forgive any missteps in this, my first post.
I have been reading with interest the many posts on the respective chemistries of chlorine and bromine, converting from one to another, etc. I have yet to come across any information specific to my circumstance, so I thought I would simply ask it here. So sorry if I missed the appropriate thread!
I have an outdoor, in-ground pool (~30,000 gallons) sanitized with chlorine. If I were to pick up a stand-alone spa (~500 gallons), install it separate from but relatively close to the pool, and sanitize it with bromine, will I have to be concerned with the brominated water mixing with the chlorinated water as the little savages run back and forth between the pool and the spa? Would that be enough inter-mixing of chlorine and bromine to be a problem? If so, I imagine I could install an outside shower of some sort, but still... I couldn't guarantee that the waters would not be mixed by the bathers.
Should I consider chlorinating both, or brominating both, with all the really interesting chemical caveats I have been reading about here?
Thanks in advance!