- Joined
- Jul 19, 2017
- Messages
- 17
- Reaction score
- 22
- What state or country do you live in
- California
I have a Tunze ATO, and when it is first powered on, it starts pumping water for 10 to 15 seconds. perhaps that is what the Autoaqua is doing? Try leaving it on for a little bit, it might just be doing its normal start up routine.

