Posted 6/27/2020 16:46 (#8339617 - in reply to #8338683) Subject: RE: crud in pasture water tank
North central TX
Lots of guys around here put gold fish in to keep that stuff cleaned up. Probably wouldn't work for you though as I'm sure yours all freeze up in the winter. I think it's just algae that grows around a piece of debris like a chunk of grass or a leaf or stick that gets in there.