Best most reliable ato.

[ChipmunkReef]

I am looking for the most reliable ato do nottt want to flood the house. Thanks

 

[Oscar47f]

I use the XP aqua with the double sensors and the tunze osmolator they’ve both been great and reliable !

 

[Zionas]

I purchased two. One a JBJ and a Tunze Osmolator. Looking forward to trying both!

 

[Anthony Scholfield]

i use the tunze osmolator on all my systems (3) and will not use anything else.

 

[JCTReefer]

Avast, guaranteed the only ATO you will find on the market that doesn’t have a bad review.

 

[flampton]

Avast as well

 

[stanlalee]

I have had a JBJ (that people love or hate) for over a decade and the only time it has failed was my neglect to clean calcium build up on the float sensor BUT the one or two times that happened it failed to turn on not the other way around. The key though is a timed ATO mated to a pump small enough to not overflow your sump but big enough to maintain your sump level in that allotted time.

 

[Dbichler]

Avast peristaltic never any issue

 

[ChipmunkReef]

What options should I choose for the avast ato if I don’t have an apex?

 

[Philly Reefer]

Tunze 3155

 

[Scorpius]

Tunze 3155

This. Mine is 6 yrs old and still runs. Had to replace pump once because I ran it dry accidentally.

 

[Dragon174]

Never had and ATO until recently. Went with the Tunze 3155 and love it. The peace of mind with the alarm is great and not having to top off manually every couple of days has been worth it's weight in gold.