There is a pond on the property, but I'm not sure why the stirrer would have been used. I don't know much about pond management. There are supposed to be catfish in the pond. Here are a couple of pics. I'm in Dayton, TX. I just updated my profile.
At various times in the life of a pond you might have to add STUFF, such as algae killer, fertilizer, die (to keep the algae under control), ph modifier, etc. All of this stuff should be mixed somehow.
I like the pontoon idea to get over to the other side