Works Great as an RO/DI ONLY Top Off By Toby on 9/20/2012
Toby would recommend this product to a friend
Works great as an RO/DI ONLY top off but I would not trust it to top off with KALK. The optical sensor works great! This product will help you enjoy the hobby.
Awsome Top off system and works right out of the box! By Ken on 9/14/2012
Ken would recommend this product to a friend
Just set up the Tunze top off system what a pleasure to install and complete no other parts needed!
Great product By Steven on 9/4/2012
Steven would recommend this product to a friend
This is one of the best aquarium devices. Just add water to the top off container once a week and forget about it. Easy to set up and the magnet holders work great.
Set and Forget By nspence84 on 9/1/2012
nspence84 would recommend this product to a friend
Have been using for a week now and love it. Don't have to worry about if the wife topped off the sump or not while working a 16 hour shift. I come home to a always level sump. Made life easier!
I finally caved, and I dont regret it! By amber on 8/25/2012
amber would recommend this product to a friend
I heard people talk about auto top offs or ATO for months but balked at the prices.
I finally got fed up with making buckets of water and dripping it all over the place every day to top off my tank, not to mention the stress it put on my fish if I forgot to do this one day and the water level dropped!
I finally splurged and bought this one after reading all the positive reviews and I have to say I am in love!
I bought an attractive kitchen trash can with a lid to fill with water and keep it next to the tank. I only have to fill it once a week which is awesome. It has even run dry and the pump still works like a charm (not that I recommend doing that).
Its a sturdy easy to use and worry free way to keep your tank at the optimum levels and I highly recommend it!
Love my Osmolator! By kenny on 8/25/2012
kenny would recommend this product to a friend
Purchased my Tunze Osmolator for my 70 gallon rimless cube reef tank about eight months ago....it keeps my Specific Gravity at 1.025 and it is very easy to set up, one of my favorite purchases for my tank. No more manual dosing top off water for me...Purchase an extra pump as you may need a new one in 8-12 months.
Great System By Will M on 8/13/2012
Will M would recommend this product to a friend
I never realized how much easier keeping my tank topped off would be until I ordered this unit. Excellent system and as long as I weekly fill up my top off water container I'm set. No more bi-daily pouring RO into my sump. A+!
Set it and Forget It! By Justin on 8/12/2012
Justin would recommend this product to a friend
Extremely reliable and maintenance free. Highly Recommended
You pay for what you get By Louis on 8/10/2012
Louis would recommend this product to a friend
This product is a little pricey but is well worth it. Auto Top off made simple. 2 switches (one optical and one mechanical) create a fail safe design that keeps your salinity perfect at all times.
Shouldn't have waited. By Bob on 8/10/2012
Bob would recommend this product to a friend
It took me a while to order this product because of the price. It is worth every penny. I no longer have to worry about daily top offs. I have a 125 gal. tank, and use a 5 gal. bucket as the top off. This lasts 1-2 weeks. It was very easy to set up, and has worked flawlessly . I highly recommend.
Absolutely Amazing By Colin on 7/25/2012
Colin would recommend this product to a friend
This thing has totally simplified my daily maintence of my tank. Keeps salinity right where you want it. Absolutely worth the money, the craftmenship is superb
Great Product! By paul on 7/19/2012
paul would recommend this product to a friend
I have had this unit for over two years. It works great and I have had no problems with it. I love not adding top off water every day! I use a 20 gallon Brute trash can for my RO/DI top off water and that lasts me two weeks for my 240 gallon tank. If you are going to use it with a kalk Stirrer I would recommend using a PH controller because if you have a small leak or start doing a water change before you unplug it, you could get concentrated kalk into your tank pretty quickly.