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Poster Info

Go Seahawks
Posts: 2,757
Registered: December 2010
Location: Ontario, Canada


Hydor Smart Level Control. Auto sump topup
Reviews Views Date of last review
1 1536 Wed January 22, 2014
Recommended By Average Price Average Rating
100% of reviewers $129.00 8.0


I have been manually topping up my reef sump with r/o water for the past year. Using a 2 gallon bucket and some tubing, I would let the r/o syphon into the sump. I did this every other day due to evaporation and trying to maintain my salinity at 1.026.
Yesterday I finally had enough and purchased an auto top-off controller.
The Smart Level control does not have any moving parts instead it uses a three pronged sensor which is mounted to the sump side with the same magnet mounts you find on power heads. Very easy to adjust level and no plunger type device which may get stuck. The control doesn't come with a submersible pump. I picked up a Rio 600 which has a flow rate of approx. 100 gallons per hour. Even at this low rate I had to turn down the flow rate as it filled the sump up too quickly for the sensor to react for my desired fill line. The sensor works on temperature difference between the low, full, and alarm modes so the slow you fill the sump the better control you will have.
Installation was easily completed in 15 minutes.
So far I like this product but time will tell if it's the perfect auto top up system for me.
Keywords: sump auto top-up reef controller




Go Seahawks

Registered: December 2010
Location: Ontario, Canada
Posts: 2757
Review Date: Wed January 22, 2014 Would you recommend the product? Yes | Price you paid?: $129.00 | Rating: 8 

Positive aspects of the product (pros): No moving parts. Easy Install
Cons: No sump pump included.

Product works well with a low flow rate sump pump. The sensor in the sump is solid-state which means no moving parts which may seize up in a reef sump.
The sensor is also attached to the sump with magnets, no drilling of the glass required.

Warning; Bulldog Pleco guarding my Sons tank now..

Please remember; every keystroke has a consequence.
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