Hello! I have a large (2 gallon) gravity-style waterer with a little cup on the bottom that fills as the bird drinks. We only have six pullets, and I noticed they don't get through much water before the waterer gets slimy. Is the waterer too big for only a few birds? Or do I just need to clean it more often? For those of you who read this, how often do you clean your waterers? TIA!
