ATO 3155 vs Osmolator 3

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Tinklez

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Hi everyone. What’s you’re thoughts on the old model of 3155 vs the new osmolator 3 for a ATO for a 50 gallon AIO?

From what I’ve read, 3155 is the best, has worked for years for many people, thought it is loud.

For the new Osmolator 3, I’ve read mixed reviews. It doesn’t have the physical floating nob, some have said it has malfunctioned, although it is a lot quieter.

Which one do you think I should purchase?
 
I have the older one (nano version) and have never once had issues with it!
 
The 3155 is probably your better choice. But I wanna bump this so others can put in input.
Why do you think the older one is better? Have you heard alot of negative reviews about the new one?
No.. id just think the newest one would be a bit better, what's your main concern?
 
For me the 3155 is the better choice but only because of application. My RODI reservoir is at least 50 feet away from my sump. It was very easy to lengthen the pump wiring to accommodate with some speaker wire. I can't do that with the new Osmo 3.
 

WHICH PART OF YOUR SETUP IS HARDEST TO REACH OR REMOVE FOR ROUTINE MAINTENANCE?

  • Glass behind or beside the tank

    Votes: 8 33.3%
  • Powerheads or wavemakers

    Votes: 2 8.3%
  • Sump or rear filtration chambers

    Votes: 3 12.5%
  • Skimmer or other filtration equipment

    Votes: 1 4.2%
  • Overflow or plumbing

    Votes: 6 25.0%
  • Lights or lids

    Votes: 0 0.0%
  • Mine is pretty easy to access!

    Votes: 3 12.5%
  • Other—tell us what I missed

    Votes: 1 4.2%
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