7115Views5Replies

Author Options:

How can I safely connect a solar panel directly to a pond or fountain pump? Answered

I want to go totally solar with my pond/fountain pump (no batteries, no house current). How would I safely wire a solar panel to a pump? What do I need to know, such as how to determine a pump size that coordinates with the size of a solar panel, etc. How would I waterproof any wiring going from pump to panel? Can I use existing pump wire or do I need to take apart and rewire the pump? How can I safely disconnect or shut off pump when not in use? Any resources or links anyone knows of that would help me?

Comments

The forums are retiring in 2021 and are now closed for new topics and comments.
0
pvtarun
pvtarun

9 years ago

can i build a solar pump with a 5vdc solar cell?????

0
iPodGuy
iPodGuy

11 years ago

You need a dc pump, and pumps all require a certain amount of constant power to run. A solar panel will vary the energy causing your pump to run erratically and possibly not at all. Try wiring the panel to charge a battery and run the pump off the battery.

0
arnold54
arnold54

Answer 11 years ago

I'll keep your battery suggestion as a possibility. I already have a small store bought solar pump for a small pot fountain but want to build myself a larger one. The small pump works totally off the solar panel with no batteries and works fine as long as the sun is shining. I want to experiment with a larger sized one -- we'll see.

0
sierrabravo
sierrabravo

11 years ago

i'm thinking about doing the same idea, only with rain barrels and a bilge pump from a boat, and as you know boats use 12VDC like a car, so as long you have 12vdc solar panel and a charge regulator (i just bought one off of ebay) and a deep cycle battery and a timer. My electrical work will be inside a custom-built "box" i guess you could call it to keep it dry.

0
arnold54
arnold54

Answer 11 years ago

Sounds like a great project -- thanks for sharing your ideas.