Today was a busy day, but not much of anything exciting. We spent the day putting the finishing touches on other projects that were mostly completed but just needed a little bit something to be “done”. We: Crimped the permanent wires and connectors needed to run the solar powered DC water pump that was previously installed….
Pond air pump is now on solar power
I recently posted about the air pumps we sourced from eBay. We just got the smaller one installed on a steel bracket we welded under the solar panels. The air pump is inside of the little polycarbonate roof extension just to the left of the solar panels. As mentioned before, the air pump is connected…
Testing out new air pumps from eBay
I ordered 2 of these pumps from eBay and it took a while for them to arrive. But they finally arrived a week or two ago and I finally got the chance to test it out in the last few days. Both are 24V DC air pumps and the smaller one is rated at 60W…
2nd prototype air pump
The first prototype air pump test I did at the beginning of the month was basically a proof of concept test. It worked well enough to adjust dimensions to a more deployable size and today the second prototype was ready for test. Here are a few pictures of it: We increased the size of the PVC…
Prototype air pump
The 220V AC air pump we bought for about $60 a while back from an aquarium supply shop was horribly inefficient. From basic physics, power is equal to force times speed. For an air pump pumping air into water, you can calculate the force as the difference between air pressure at the pump, and water…
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