A small group of early-adopter contractors is using new water-recycling vacuum trucks to clean sewer lines. If adopted on a large scale, the technology could potentially save municipalities voluminous amounts of water a year — an especially attractive benefit for drought-stricken regions — as well as reduce sewer cleaning costs.Manufactured by J. Hvidtved Larsen A/S in Denmark, the RECycler water-reclamation vacuum trucks are currently being used in California, Ohio and along the East Coast. Already popular in Europe, the RECyclers operate like normal vacuum trucks, with one glaring exception: They don’t need to fill up with potable water in order
