Building Solar Powered Rain Barrel Pump with Giraffe Tools

Hi Everyone! I have been loving my rain barrel this summer, but lugging a watering can to water my plants was very time consuming. I finally added a pump and a hose to it, so now watering is a breeze! This is a 12v solar powered system as well, so I’m able to water my plants is completely off the grid.

Here are the system components:
Pump: https://amzn.to/3D6E0j9
Pump Filter: https://amzn.to/41vzK6W
Solar Panel + Charge Controller: https://amzn.to/3VB3RpU
Battery: https://amzn.to/41t9v1b
Waterproof Junction Box: https://amzn.to/3VZWatN
1/2” to 3/4” hose Adapters: https://amzn.to/4fm6Byh
Female to Female Hose Fitting: https://amzn.to/41w1tEA
Inline Fuse: https://amzn.to/49AkZ4O
Crimp Fittings: https://amzn.to/3OPoUBo
Battery Spade Connectors: https://amzn.to/3ZC6poQ


Giraffe tools was also kind enough to send their 82’ automatic ground mounted hose reel for this project!

Here is a link to it: https://giraffetools.com/products/gro...
Use code jack to receive 5% off your purchase!

Battery charge time math:

Determine the battery capacity in watt hours (Wh):
Battery Capacity (Wh) = Voltage (V) × Capacity (Ah)
For my battery we get 12 V × 7 Ah = 84 Wh

Estimate the charging time:
To find the charging time, we divide the energy needed by the power output of the solar panel (I have a 20W Panel)
Charging Time (hours) = 84 Wh 20 W
Charging Time = 4.2 hours

This assumes that the system is 100% efficient. In reality, the panel won’t always be generating a perfect 20W. But I get much more than 4 hours of full sun a day, so I can still charge my battery fully in a day.

I hope you guys enjoy this video! If you’re just finding my page via it, welcome and be sure to check out my other videos.

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