Milorganite is a unique, all-natural lawn fertilizer noted for its slow-release, goof-proof qualities and fast green up. But that’s not what makes this product unique. It’s a byproduct of Milwaukee’s sewage treatment facilities — manufactured through a revolutionary wastewater recycling system that turns you-know-what into a potent turf builder. Ask the grounds crew at Miller Park. This sponsorship ad appeared in the Milwaukee Brewers’ gameday program.