Anyone using water softened tapwater in their reef?

[molotov]

I'm so confused why you would use treated water to fill your tank yet use RO/DI water for your top offs???? Why would you use RO/DI for top off when your original water is treated? I would say use only treated water for everything or RO water for everything of course with the emphasis on RO/DI for everything. Anyways.........

You'll also not want to plumb your water softener to the water lines that feed your outside taps. You wouldn't want to be watering your lawn or flower beds with water that you've treated with a water softener. Just my $0.02