DIY 12v aerator


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has anybody built their own aerator? air pumps on ebay are only about $10-15. im thinking along the lines of a 12 volt car battery to power it, and a solar charger to keep the battery charged.

looking for advice from anybody that might have done something like this.
 
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brokensword

Not all those who wander are lost
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how much does a 12v car battery cost again? And the solar panel is how many $$ ? Don't forget the waterproof battery housing...ah, I'm thinking 10-15 dollars is looking pretty good!
 
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how much does a 12v car battery cost again? And the solar panel is how many $$ ? Don't forget the waterproof battery housing...ah, I'm thinking 10-15 dollars is looking pretty good!
sure, its cheaper, but that isnt what i’m asking about.
 
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I have not made any yet.. but been toying with the idea.
Your setup is probably about right, you could use a car battery, but it would not last that long... you really need a deep cycle battery.
Those are meant to be discharged/charged many times.
You can look on Amazon for solar air pumps, essentially they come as a cheap-ish system with solar panel and air pump.
I know they have them... i did look at those, but have not bought one yet either, but it's on my list.
The other place i do research like this is YouTube - good for stuff like this...
 
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How difficult would it really be to supply house current near your pond? Once installed, you're done. No dealing with chargers, batteries, etc. Plus, you'll be able to use a variety of devices that are much more reliable and functional. Pumps, aerators, lights etc.
The higher the voltage, the less current you will draw.

I don't know if this is basically just an experiment.

Just because it's only 12 volts, don't take it for granted. Lead acid batteries can be dangerous if you're not careful.

Yes, a deep cycle battery is what you'll need. The last deep cycle battery I bought was just under $100 and that was quite a few years ago.

I question how long that pump will run on a single charge.

Will the solar charger completely charge the battery every day? If not, that battery won't last long. It needs to be fully charged before putting a load back on it. It needs to be recharged immediately after it has been discharged.

How long is that inexpensive aerator going to last and will it produce enough air? For $10-$15, I doubt it will be adequate.

Go for it if you're really set on doing it, but you may be wasting time and money that you could have put toward installing electrical outlets.
 
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i second what @poconojoe said... however, for my need (once in a hundred years or just like Feb 2021), i want to be able to provide aeration in the event i lose electrical power for more than a day. Just a backup thing... not for my every day needs.
 
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How difficult would it really be to supply house current near your pond? Once installed, you're done. No dealing with chargers, batteries, etc. Plus, you'll be able to use a variety of devices that are much more reliable and functional. Pumps, aerators, lights etc.
The higher the voltage, the less current you will draw.

I don't know if this is basically just an experiment.

Just because it's only 12 volts, don't take it for granted. Lead acid batteries can be dangerous if you're not careful.

Yes, a deep cycle battery is what you'll need. The last deep cycle battery I bought was just under $100 and that was quite a few years ago.

I question how long that pump will run on a single charge.

Will the solar charger completely charge the battery every day? If not, that battery won't last long. It needs to be fully charged before putting a load back on it. It needs to be recharged immediately after it has been discharged.

How long is that inexpensive aerator going to last and will it produce enough air? For $10-$15, I doubt it will be adequate.

Go for it if you're really set on doing it, but you may be wasting time and money that you could have put toward installing electrical outlets.
thanks for the tip on the deep cycle battery. that could be a deal breaker. the cost is no problem, but I wasn’t aware of the intricacies of the charge/discharge cycle. (it raises the question in my mind as to how well the little prepackaged kits with battery backup will work.)

im starting with a very small wildlife pond, and it’s a trial run for me. i have a backhoe and could bring in electrical power, but there are many reasons that I don’t want to, at least not initially. i may be back to square one - get a small solar powered unit that runs during the day and adapt to whatever shortcomings it presents.
 
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i second what @poconojoe said... however, for my need (once in a hundred years or just like Feb 2021), i want to be able to provide aeration in the event i lose electrical power for more than a day. Just a backup thing... not for my every day needs.
It should be feasible as a backup. That makes sense.

When I moved into my neighborhood back in 1996, it was common to lose power, unfortunately.
I bought a portable generator for that very purpose. I used it more than a few times. Things must have improved since we haven't had to use it in quite a while, but we still have it... just in case.

You might be able to buy a very small generator for a little more than you might be paying for all that solar stuff. And you can power a few essential items in your home at the same time.

There are many street vendors that use those small Honda generators. They can't be too expensive.
You just have to watch your load (wattage). You wouldn't want to overload it.
 
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How difficult would it really be to supply house current near your pond? Once installed, you're done. No dealing with chargers, batteries, etc. Plus, you'll be able to use a variety of devices that are much more reliable and functional. Pumps, aerators, lights etc.
The higher the voltage, the less current you will draw.

I don't know if this is basically just an experiment.

Just because it's only 12 volts, don't take it for granted. Lead acid batteries can be dangerous if you're not careful.

Yes, a deep cycle battery is what you'll need. The last deep cycle battery I bought was just under $100 and that was quite a few years ago.

I question how long that pump will run on a single charge.

Will the solar charger completely charge the battery every day? If not, that battery won't last long. It needs to be fully charged before putting a load back on it. It needs to be recharged immediately after it has been discharged.

How long is that inexpensive aerator going to last and will it produce enough air? For $10-$15, I doubt it will be adequate.

Go for it if you're really set on doing it, but you may be wasting time and money that you could have put toward installing electrical outlets.
 
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thanks all for the input. im giving up the chase on this idea. it gets more complicated than i thought. I am still restricted to solar, but not diy. my next approach will be to adapt to the limitations of solar without battery backup.

I started a different thread looking for commercial recommendations.
 

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