I have no idea how these beauties got through the gates.
Bren says they are called waders.
The air temperature is 7.1, I'm guessing the water is quite a bit colder.
We have this issue with high iron and iron bacteria in the water that is coming out of the bore into the dam. You can see it all orange against the green of the dam.
This iron is sludgy and clogs up pipes and filters and creates a bit of a mess and a lot of extra work.
Bren's theory is that by making the water go up into the air before it goes into the water he is aerating it which in turn will make the iron particles heavy and sink to the bottom. Aeration also helps to improve water quality in general.