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Dave Tolliver's insulated glove holds dry ice pellets as he gives interested parties a cool hand look at the stuff that helps explode gum and graffiti from downtown spots. The dry ice mixes with compressed air to literally blast unwanted items off sidewalks, walls, railings, posts and other downtown offerings that can become defaced or cluttered.

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Dry ice blasting possible solution for downtown clean-up

A demonstration Wednesday showed one possible solution to the gum and grime that mar downtown sidewalks.

WALLA WALLA -- Gum be gone.City and downtown officials got a look at a possible new way to get rid of old chewing gum, grime and other gunk Wednesday.In front of a small group of onlookers gathered at Land Title Plaza, Dave Tolliver of Oxarc demonstrated


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