Considering ATO

[doch]

CONSIDERING!?!?! Really? This is a no brainer. My Tunze broke a couple weeks ago, and it makes me angry to do it manually. That said, my whole tank makes me angry right now, but that's a different story.

[christyf5]

used to have a gravity fed system with a float valve that failed once a year. I'd replace it and it would be good for another year. Finally when I set up my most recent tank I decided to look into a float switch. Turns out one came with my controller so I set that up. Its failed on me a couple of times (small brittle stars get into the floating part of the switch and jam it) but my topoff tank is small enough and the main tank large enough that if the whole topoff tank ends up in the sump, its not a huge deal.

[intarsiabox]

I asked the same question a couple months ago and while most people responded Tunze everyone else just said what they currently had was the best. So I went a different direction and started googling what systems have failed and why. I couldn't find any instances were a Tunze ATO caused any damage or overflows. Lots of pumps dying but usually due to owner not filling up the water. Other systems had more problems but I'll leave you to research any particular methods you are interested in.