Month: March 2002

Griffith joins Nelsen team Joshua Griffith has joined Nelsen Corp., of Akron, Ohio, as a dealer sales representative. Dave Nelsen,…

Brentwood, Calif.-based Pacific Ozone Technology is building a new manufacturing, engineering and sales facility in Benicia, Calif. For more information,…

Up or down with a rapid sand filter Dear Editor: Please, can you explain to me why using up-flow and…