When you say it "fills seasonally", are you saying it fills with rainfall/watershed runoff and leaks out over time or evaporates out over time?

I wouldn't recommend spending money of a well to try to keep it filled until you understand where the water is going. The operational expense (electric bill) keeping it full will likely be more in the long run than the capital expense of poking the hole in the ground.

If your pond is leaking, that is probably the first thing you want to troubleshoot and correct. Fighting evaporation will be a lower lift than fighting a hole in the boat.

Can you provide some more specific details on pond size and behavior so folks here might better help?

Cheers!
/c

96.85840735 percent clayton... the rest is just pi.

We become what we think about.