Flushing tough clogsProblemShon Westart, water superintendent for Vienna, Mo., needed new equipment for cleaning sewers, clearing blockages and cutting roots. His main concern was that the machine would have to be powerful enough to propel a Warthog nozzle from StoneAge.SolutionWestart bought a 7065 culvert cleaner trailer jetter from O’Brien Mfg., a product of Hi-Vac Corp. The tandem-axle, trailer-mounted unit has a Cummins 110 hp water-cooled diesel engine, triplex pump rated at 65 gpm/2,000 psi, 700-gallon polyethylene water tank with sump and side baffles, catwalk fenders, and a 190-degree pivot/swivel hose reel with 400 feet of 1-inch thermoplastic sewer hose and
