Tom.G
Science Advisor
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Since your existing solar system has excess capacity, you could connect the pump to that as just an additional load. You may or may not need a way to keep the pump off at night. If the lights stay on long enough, just let the pump run. It is unclear if the lights are on continuously. If not, then replace whatever switches them with a device to select between lights and pump.
As an alternative, you might consider this pump. It has half the water flow but about 1/3 the power requirement. (Smaller panel and battery needed... or longer runtime.)
https://www.amazon.com/dp/B00JWJIC0K/?tag=pfamazon01-20
As an alternative, you might consider this pump. It has half the water flow but about 1/3 the power requirement. (Smaller panel and battery needed... or longer runtime.)
https://www.amazon.com/dp/B00JWJIC0K/?tag=pfamazon01-20
No idea, I've never done a solar-electric system. Anyone out there, is there available a solar controller without a switching delay?Wolst73 said:Is there a controller without a delay?
The instructions that come with the controller would show that... (or I suppose you could ask @jim hardy to do your research.)Wolst73 said:how would you wire it so that pump is running directly off panel when there is enough sunlight and switch to battery when it's power output drops? (Jim's schematic pictures would be great!)