Paul J. Rogers, P.E., is engineering manager for G.A. Braun, Syracuse, N.Y.
The beauty of the tunnel washer is its ability to reuse water without an external system, and to reclaim heat and chemicals.
In a nutshell, soiled goods go in the front of the tunnel and are discharged clean. This works because the cleanest water is in the back of the tunnel. As goods move forward, they’re constantly in contact with the cleanest water.