Greetings experts,

I would like to build a gunite hot tub near the pool. (My wife thinks
we should get a pre-built fiberglass jacuzzi, which is strange because
I am usually the frugal one.) It seems to me that it would be nice
to share the pool recirculation pump, filters, heater, and chlorine
generator between the pool and the spa, using a diverter. Since
every time the diverter changes position there will be some mixing
of water (mostly from the filter housing), I don't expect that I
can maintain different chemistry for spa and pool. Is this acceptable,
and is this overall a good or bad idea?

Thanks!
Luigi