Aqua Lifter AQ-20 Dosing Pump
The Aqualifter pump is also excellent for starting, and maintaining, syphon in hang on the back style overflow boxes.
Ratings & Reviews
I use this to keep air from accumulating in the siphon tube on my overflow box. It works like I expected it to. I've only had it hooked up for less than a month, but thus far, I would recommend it.
The reason these are so moderately priced is that you need to buy them by the dozen. I have no less than 7 of these sitting in the junk heap. They are quiet and work great until they stop working, which is no more than a few months. (Of course, you know that they have stopped working because you lose siphon on your overflow [I have a CPR type with square corners] and your tank empties on the floor.) The owner of my local aquarium store says that everyone knows they are junk but that there aren't many alternatives. So, I have taken to just replacing it every two months or so.
by Vince S
Very well built and very quiet when in use. I use it for my overflow tube, can't beat it. Best part, the price is uncomonally reasonable.
piece of mind
well I have one tank my QT tank and it has not been drilled so use the overflows that hang on the tank and these keep them from going dry which used to happen to me alot not anymore love them and for the price you can't go wrong.also nice for top offs
Love it for the piece of mind
for the price you cannot go wrong and they work as described ..love em
Super dosing pump for the money
by Matt Pfizer
This pump is a work horse. It will pump water up to 30" high at a flow rate of 3.5gals per hour. I have mine set up to dose my aquarium with trace elements, sure makes taking care of my aquarium a whole lot easier.
A pretty good dosing pump, plus...
by Mike D.
Not only will this unit dose calcium, alk. / magnesium, trace elements and such but its also able to keep overflow tubes free of bubbles collecting at the top of the bend.
<br>For the price its a gem. I recommend it to fill the need for dosing and someday then invest in a more expensive type.