Considering ATO

[ALang]

Originally Posted by Reefie

I'm running one, just got sick of manually topping off. It paid for itself over the summer as my place has a ton of windows and lots of natural sunlight.

I'd recommend the Tunze Osmolator, super simple to install. Just keep the Top Off tube out of the water or use a check valve. I kept mine out of the water just because if you don't it will back-siphon. The instructions don't mention any of that, I had it submerged, so guess what happened to me? Haha!

Exactly what he said.
I'd never go without one again.
I have a 30gal top-off tank that I fill only about once a week. Great for going on short holidays.