Unmanned. Lets say it changes the water on a monday. She would put the salt in on tuesday and then 13 days later, it would do its thing again.

Seems more logical to use conductivity. You get to monitor it and if something goes wrong with the awc, it will tell you. If you do it with floats, it just tells you something is wrong, no monitoring.

Guess with floats you can pinpoint an individual problem in the system vs with conductivity it just tells you the whole system is offline.