Thanks for the welcome! The only pipe or opening in the lower pond is a vertical pipe I thought was to prevent the pond from overflowing. The top of it is always just above the water lever so I don’t think it was hooked up to anything — or am I wrong? Maybe I should run the garden hose into it and see if and where water exits?That is one neat pond!
Welcome to our forum!
A external pump, would work great, you could pull water from the lower pond, plumb it to send water down via the upper pipe. With the way it is built you could hide the new lines.
Or see if you can find the input line in the lower pond, get a submersible pump, pump it to push water into the lines. See if you get water coming down from the top.
And how would I hide the lines? Any idea what kind of pump, how much power, do I need a slimmer or other equipment? We are total amateurs. I’d love to get a shopping list for everything I need from an expert because we don’t know what we don’t know! Also, I’ve heard the electricity bills can be really high. Any idea how much it costs for 4-5 months of operating it (without fish)? We should probably figure that out before we buy all the equipment.
Thanks again!