ATO's Don't Get Better Than This! By Bernie on 12/20/2014
Bernie would recommend this product to a friend
The Tunze was superior to my first ATO set up which used a float valve and lifter pump. The optical sensor is great and having the second float valve to protect against overfilling is just a smart investment to protect not only your tank but the flooring around it.
I have a controller in which I could probably have set something up myself but for an all in one package this system is great.
Very Cool! By Trent on 12/16/2014
Trent would recommend this product to a friend
This is a great product. Easy to setup and trouble free.
One funny thing is that the way that the LED indicator lights are mounted inside the control box allows for "bleed over" from one light to another. So, in my particular case, the way that I have it mounted inside my cabinet makes the "Too High" appear to be lit when in fact it's the "Level" light. It took me a couple of plug-unplug cycles to figure that out.
But, it's great product. Recommended!
Still the best! By Martin on 12/15/2014
Martin would recommend this product to a friend
There have been a lot of additions to the ATO market over the last year or so. The Tunze 3155 Osmolator is stil the best unit on the market. Reliable and dependable. If you're undecided because of price, don't be...just buy it and be glad you did.
Works flawlessly By GARY on 12/15/2014
GARY would recommend this product to a friend
Bought one thanks to the positive reviews here and I owe the reviewers here a debt for getting it right and saving Me Money making a mistake.
Want an ATO, click 'ADD TO CART' on this and be done with it.
great product By kalen on 12/11/2014
kalen would recommend this product to a friend
I recently bought the tunze ato and I had heard many good things about it. I did many months of research and I finally decided to buy it and replace my smart ato which was always failing. I would recommend this product to others
Tunze osmolator 3155 Top Off By Joe on 12/10/2014
Joe would recommend this product to a friend
This is the best automatic top off system I have 3 of them on different tanks. Easy to set up plug and play. They been running for over 3 years with no problems.
The best By John g on 12/9/2014
John g would recommend this product to a friend
Very easy to set up and extremely accurate
Easy Setup By Evelio on 12/9/2014
Evelio would recommend this product to a friend
It was easy to set up straight out of the box. This is one of the best investments that I have made for my tank.
ONE WORD....WOW!!! By NASSAUREEF on 12/8/2014
NASSAUREEF would recommend this product to a friend
This top off is amazing very easy to setup. Don't waste your money on another brand cause it will cost you double and you will end up with the tunze , so buy it the 1st time and it will be the last one you will buy..
Simply perfect By Nate on 12/8/2014
Nate would recommend this product to a friend
I have used two tunzes osmolators on different tanks and I have never had an issue. double back up (float sensor and auto times pump shut off) makes me not worrying about having water over flow. and all the install hardware added is always a bonus, like the return tube holder.
best investment i made By Andre on 12/6/2014
Andre would recommend this product to a friend
My first ato and only I will buy. very happy with this ato. Easy to install
Love it! By Joshua on 12/5/2014
Joshua would recommend this product to a friend
I have had a few different ATOs but this one is by far the best I have had. Don't know why I didn't just get this one from the start.
GREATTTTTTTTTTTTTT By TOM on 11/29/2014
TOM would recommend this product to a friend
Just got this auto off was really easy to install took about 30 mins and WOW... this system is great would recommend this to everyone. I was waiting for the sale Blackfriday what a great deal...
Can't wait to get my hands on this! By Nelson on 11/28/2014
Nelson would recommend this product to a friend
just order this on black friday special!! can't wait to have it in my tank up and running!
good By Rodney on 11/25/2014
Rodney would recommend this product to a friend
works like it sould saves time having to top off tank evereday
Great Product By Harris on 11/23/2014
Harris would recommend this product to a friend
I've had this for about a month now. It was really easy to set up and has saved me time by not having to top off my sump by hand. All around a great addition to the tank!
awesome By dolpator on 11/23/2014
dolpator would recommend this product to a friend
This top off system is awesome. I have never had one issue with it and it never misses a beat. I used the JBJ auto top off on the past but like the fail safe options. It has been very dependable. And would recommend it to any one. Great product
Works and easy to setup. By Mario on 11/19/2014
Mario would recommend this product to a friend
Instructions were easy to follow. One call to Tunze was answered promptly when I had a question about whether all magnets were waterproof.
Never Fails By FirstContact on 11/10/2014
FirstContact would recommend this product to a friend
This is a great piece of gear. It has never failed on me. Once a year or six months or so, I'll clean the optical sensor from salt. It's in a 100g Rubbermaid stock tank. The pump is in a 32g Brute, and the top off goes through my kalk reactor first.
Perfect Tool By Steven on 11/6/2014
Steven would recommend this product to a friend
Really satisfied with my purchased. Works exactly how it should so I don't have to worry about it.
So Far So Good! By Randy on 10/23/2014
Randy would recommend this product to a friend
This seems to be working like a Charm. However I did have one issue with it right away, for some reason the pump wasn't working when I first plugged it in. I unplugged it for several hours and came back to it to see what the problem was and when I plugged it back in everything worked perfectly. It has kept my tank at a perfect level so far. I have it hooked up with a 5gal tank reservoir and it has given me less time worrying about water level and more time loving my tank!
Amazing Product and never fail By Michael on 10/9/2014
Michael would recommend this product to a friend
I love this ATO!!! I don't ever have to add more water to my sump day in and day out. I have a 10 gal sitting inside tank stand and it lasts about 1 1/2 weeks before having to fill it again. There has been a few power surges since installing it. It has never failed to come back on or sound alarm. Thank You Tunze and Thank You BRS for carrying this item.
Stability By Valerie on 10/5/2014
Valerie would recommend this product to a friend
This unit has not failed once. I use Kalkwasser in my auto top water and the pump hasn't failed yet. The pump is a little bit loud but the BRS staff told me to pull the airline tubing out a little bit and it made it much quieter.
functional and efficient By Steven on 9/8/2014
Steven would recommend this product to a friend
I have used the Tunze for two years now and it meets my expectations. One needs to take seriously the caution to not have the feeder hose under the surface of the aquarium water level. I flooded my office twice doing just that. Also, the pump has a 6 month to a year longevity and they go out without much fan fare. Keep a couple extra pumps, at 23 dollars, on hand. My final caution is not a fault of the unit but I have an auto feeder in my lower tank and when the feeder was too close to the optical sensor flakes of food caused the unit to think the tank was at level and it failed to fill. Keep the food as far away from the sensor as possible. Beyond these concerns, it is a great unit and very dependable.