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 Post subject: Solar powered air pump
PostPosted: Apr 9th, '17, 11:02 
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I am looking for a DC powered air pump that can connect to a charge controller. Note that the solar panel is five watts and theres a 9ah battery and a 10 ah controller (pvm i believe).


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PostPosted: Apr 9th, '17, 11:50 
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That's going to have to be a very small air pump, in the order of 1 or 2W if you dont want to run your battery flat and plan to run it 24 hours per day. There are a few 12VDC pumps on the market, but I suspect most will be more than 2W.

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My small AP system: http://backyardaquaponics.com/forum/viewtopic.php?f=18&t=16345
Larger 2nd system: http://www.backyardaquaponics.com/forum/viewtopic.php?f=18&t=24153
Solar powered Gunagulla Organic Garden
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PostPosted: Apr 18th, '17, 21:43 
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what I'm using https://www.amazon.com/B15-Marine-Metal ... ir+pump+dc

I think you will need more power.

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PostPosted: Apr 24th, '17, 13:42 
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Okay then. I am probably going to do that. How do I attach those alligator clips to a solar controller?


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PostPosted: Apr 24th, '17, 16:40 
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Solar controllers usually have screwed terminals, so you can strip the wire and fasten it inside the terminal with the screw.

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PostPosted: Apr 24th, '17, 19:18 
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Kevinswither wrote:
Okay then. I am probably going to do that. How do I attach those alligator clips to a solar controller?


my panels are on a separate building behind my greenhouse. I ran 2 wires from the controller over inside the green house bought some screw type terminal bars like in a panel. I attach the alligator clip to that.

Image

I bought 3 sets similar to that one. One for ground, one for always on and the other is off of the timer.

I spray painted 2 of them red one black.

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PostPosted: Apr 28th, '17, 02:22 
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I've seen these floating around on ebay quite cheap. They use 2.5w.

Remember a 5w solar panel will only produce 5w when it is working 100% efficiently, most of the time you will not be producing that. I would suggest going for 20w or 50w solar panel. This will enable you to run your air stones and charge the battery for running the air stones at night.

http://www.ebay.co.uk/itm/Woodside-Solar-Powered-Oxygenator-Pond-Water-Oxygen-Pump-2-Air-Stone-Aerator-/311631086016

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