Kona works great.
I had pool builder install pvc line from directly under my spiggot outside, to the return lines. Installed a rpzalong the way, to ensure nothing backs up into house. Also installed valves that I can close, If I need to remove the kona. K9na controller is attached to piping with connectors that I can twist off if I need to service it in some way.
Anthony & Sylvan built my pool.
I sometimes almost feel sorry for pool builders, because their contractors just don't give a hsit about them. They have more jobs than they can do, and everyone wants for them to descend gracefully to do a job. Grant it, pool builder construction managers should be extra involved, but in my experience, it is on a person by person basis.
Where in Austin are you? I'm actually just outside, in Dripping Springs.
Wish you well with finishing your job. One contractor told me their company has more than 500 jobs scheduled.
Builder told me their minimum times to complete jobs has extended from aboutv4 months, to 10-12 months, all due to contractors.
If you have questions, PM me, I'll be glad to help.