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Dave Gustafson meets with Stillwater, Minnesota, restaurant owner Chris Cosgrove to consult about issues with the septic system operation at the sports bar Cozzie’s. (Photos by Brad Stauffer)
In Dave Gustafson’s onsite treatment training classes, you can count on at least three things.
You’ll get a quality education in building and maintaining systems that treat wastewater effectively for the long term. You’ll get it with a generous dose of humor. And you’ll...
