Pretty OK By Benjamin on 4/10/14Benjamin would recommend this product to a friendAfter avoiding a couple of floods when i first hooked it up, i think i finally have it dialed in. If the glass on where you are placing it, make sure to use a spacer, as the magnet affects the float. directions could be clearer about this. after I got it going correctly, i love it.
great By chuck on 3/24/14chuck would recommend this product to a friendWorked great for my nano tank. was out of town 10 days and not one problem
Great Product By reefer63 on 1/29/14reefer63 would recommend this product to a friendInstalled in a half hour works great on my biocube 29 keeps water level constant no problem
Works like a charm! By 08TRDOFFROAD on 12/16/1308TRDOFFROAD would recommend this product to a friendInstalled this ATO on a Biocube 29. I had a little bit of an issue with the pump not shutting off properly after my initial install. After a short conversation with Tunze customer service we determined the switch was being interfered with by the magnet from my Tunze 9002 skimmer. I moved the switch to the other side of the return chamber away from the skimmer magnet, and it works like a charm!
Good By C on 12/13/13C would recommend this product to a friendI am satisfied with the Tunze product
Best ATO purchase By Oscar on 11/26/13Oscar would recommend this product to a friendI love this ATO easy to put anywhere either in sump or in your tank. I love that it had magnets not suction cups that easily fall of and can dump water into your sump. I also, love that it includes its own pump without the need to purchase one and the replacement its cheap aswell.
Ok product, but be careful By Nano Pete on 11/26/13Nano Pete would recommend this product to a friendAfter almost flooding my basement twice and contacting Bulk reef supply; I was contacted by Tunze technician and he worked with me to fix my problems. When attaching switch with magnet onto sump glass the maget affects the switch if the glass is too thin. I needed to shim between the two magnets for the switch to work properly. Also, be aware of creating a siphon from reservior to were your supplying ATO water. As far as quality; You get what you pay for...
Pros- works as advertised.
Cons- doesnt come with clear instructions
Excellent ATO By Michael on 11/25/13Michael would recommend this product to a friendI just installed this in a Nuvo 24 and it's working excellent to keep my water level exactly where I want it. The pump can fit right into a 5 gallon polyurethane jug without modification, which is really nice if you don't have a special RO Reservoir. It was easy to assemble and install and the pump is quiet enough to not bother my wife.
My only two complaints of this system: I wish the control box had tabs to mount with screws to the interior of my stand and I would love for the control box to have some kind of LED that either indicates the unit is powered or that the pump is on. I feel like for the price a single LED in the control box isn't a crazy expectation. Other than that it's an excellent product.
Great product By Bobo on 11/24/13Bobo would recommend this product to a friendWe'll built . It got to me very speedy with great shipping and packaged well. Works like a charm I will deff be getting another
Great product from Tunze, no surprise there. By Andrew on 11/2/13Andrew would recommend this product to a friendworks flawlessly. Only regret is not getting the bigger model with two sensors. the 5 second time out feature is great piece of mind however.
Perfect for my Nano tank By MICKEY on 10/7/13MICKEY would recommend this product to a friendNo issues so far. I installed this in an 8-gallon tank so I am especially happy for the auto-cutoff. Seems pretty solid!
upgrade By Red Fish on 10/4/13Red Fish wouldn't recommend this product to a friendI purchased this nano because I was so happy with the 3155. May of this year.
It never really worked like it should, it had an electrical problem right away but I thought I could live with it until just stopped a few days ago. My hubby checked the electrical current and it did not have one.
So I am now purchasing the 3155 to replace this one. If you are trying to decide which one to go with. I HIGHLY recommend the 3155 even though it is more expensive. I wish I had.
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Ask a Question About 'Tunze Osmolator Nano 3152 Auto Top Off'
Previously Asked Questions
by Matt on December 16, 2013, @4:29 AM
What's the main differences between the nano and the 3155? Also, would be possible to upgrade in the future without having to buy the whole thing?
Bulk Reef Supply Hi Matt,
The nano osmolator is just a simple float switch and that is it. The 3155 has the dual level control with the optical eye for primary control and the float switch emergency backup. The 3155 offers superior redundancy.
It would not be possible to upgrade, they are entirely different units.
by Clayton on August 29, 2013, @3:36 PM
Why can't this model be used on a larger system?
Bulk Reef Supply Hi Clayton,
The unit is not suited to large aquariums because it has a timer based cut off so the pump will only run for a short period of time. Using it with a large tank can result in the the pump turning off before its finished replacing the evaporation.
by Joe on February 25, 2014, @12:58 PM
Other than the reservoir, What else is needed for this kit? Also, what is the maximum head height of the pump? Thanks !
Bulk Reef Supply Hi Joe,
Other then the container the kit really comes with everything you need to get started. The pump has a max head height of about 7ft.
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