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BeerBlast Mixed Gas Generator would fix your issue. Like the others said, you are overcarbonating at 25psi. Using a 60/40 blend at about 15-18psi would most-likely fix all your issues and empty your kegs complete. Check your kegs after they blow and see how much you're giving back. It's usually about 10 pints = $30+ per keg. The BeerBlast will eliminate that. it's a nitrogen generator with a McDantim Blender all in one. BWW, Outback, and others have/are switched all their stores.
www.southteksystems.com