I know the GenIII lids are hinged, and probably much more convenient, but my screw-on GenII lids never leak and seal well. Even with the vent open, almost none sloshes out. All my other water tanks are bulk tanks from an ag store with the same screw lid. None leak, and they last, one tank is 15 years old. Occasionally one gets lost but a local ag store sells them for cheap.

I have not seen the GenIII tank lids up close, but if the hole is the same size couldn't you just replace the whole ring and lid assembly with a screw type one? Any farm store should have one.

Thanks for the suggestions guys. Filling the tanks with less liquid seems a bit counterproductive and I've had problems even with less than full tanks. Sacks,bags, toy balls just doesn't portray a professional image in my opinion and I really think it sets a bad example for employees (future). Bottom line is it's a shortcut. Screw on lids would be fine-not as convenient but welcome vs the mess right now.

Thanks again guys for your tips and feedback.

That would be awesome thanks AC