The RECycler combination unit from J. Hvidtved Larsen US can be used to jet water mains regardless of whether you need to remove blockages, carry out preventive cleaning, clear new sewers of construction gravel or clean prior to guided camera inspection and relining. The jetting water is cleaned and reused, and requires nothing more of the operator than traditional combination units. 312/705-3813; www.hvidtved.com.