Tunze Osmolator 3 Nano overfilled sump

[Dave_Buffalo]

I only had the Tunze Osmolator 3 Nano for about a month and it was working fine until it didn't.

I noticed one day the water level a bit low in the display tank so I increased my variable sump pump output a bit and the water level rose correctly. I was not watching the ATO but it should have been triggered to fill.

Well it triggered alright... for over 5 minutes and overflowed my sump by dumping the entire 5gal resevoir into it.

I disconnected it and haven't had time yet to diagnose what went wrong, but what could have caused this?

 

[griss]

I've never used a pump driven topoff so, I won't be any help there. But, I would recommend reaching out to Roger of Tunze USA. Roger is a great guy and always willing to help.

That said, what is your salinity currently at? Fish and Corals can tolerate a drop in salinity better than a sudden increase. So, take you time brining the salinity back up.

 

[Dave_Buffalo]

OK thank you! Yes I am aware of taking salinity deltas carefully, thank you! I sent the above in an email to Tunze.