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Silent Air Battery Operated Air Pump - B11
- Reliable and long lasting perfomance during a power outage.
- The ÂºÂºbubblesÂºÂº come ON when the power goes off!
- Detects any loss of AC power and turns on automatically.
- Attractive & compact design fits almost anywhere.
- Requires two "D" size batteries (not included).
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If you worry about how your fish will survive in the event of a power outage, the Silent Air B-11 Air Pump will give you peace of mind. It runs on 2 "D" batteries (not included) and plugs into a standard AC outlet; it detects a power outage immediately and begins to provide lifesaving bubbles for as long as they're needed. When the power comes back on, it shuts off to preserve battery life. Built-in on-off switch. Can be unplugged from wall and used as a portable pump. Includes 18" of airline tubing and 1 airstone.
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Most Helpful Customer Reviews on Amazon.com (beta)
It will automatically detect a power outage and turn itself on, so you don't need to be there to activate it (just make sure the power switch is always set to "on"). You plug its power cord into an outlet and that is how it detects a loss of power. But the power cord neither powers the unit, nor can it charge the batteries. This is strictly a battery-operated back-up system and is not intended to be an everyday air pump. The supplied air line is absurdly short for most applications, so be sure to pick up your own. Also be sure to purchase and insert a back flow preventer (not included) into the air line to prevent water from flowing back into the pump, which will destroy it. I gave this product 4 stars instead of 5 because it is absurdly loud, which is unacceptable in an era where most manufacturers have found a way to make these things whisper quiet. How loud is it? Even if you put this thing in a cabinet, if your aquarium is in your bedroom you would never be able to sleep. Despite that one complaint, every aquarium owner should have one of these. I consider it as essential as having a heater and filter.
EDIT: I was without power for a week after Hurricane Sandy. I can now confrim that it lasted 6 straight days on the same set of batteries I mentioned earlier in this review that ran 8 hours a year ago. A fresh set should give you at least 7 days. Outstanding.
Pros: small, uses D batteries, last a long time, works when power is out and delivers what it is supposed to do.
Cons: Loud. this thing is loud but I have an aquarium cabinet and I put it under there on the shelf and I never heard it when the power went off. So if you have it out in the open, it will be loud. Suggest placing a cloth or something underneath it so it will cut down on the noise.
Overall, I love it and will not be without one. I only gave it 4 stars because it is so loud. The rest is definitely a 5 star.