Hot water jetter

A hot water jetter heats the working water to typically 60 to 90 degrees Celsius before it enters the high-pressure pump, allowing fats, oils and grease to soften and detach more easily from the pipe wall. The technique is widely used in restaurant grease line maintenance and large food production sites. The diesel or gas burner adds weight and complexity, so hot water jetters tend to be trailer or skid mounted rather than van packed. Operators must wear suitable thermal-rated PPE and be trained in line with the Water Jetting Association Code of Practice on hot water working. Discharge of warm wastewater into the foul drain is permitted within Thames Water trade effluent limits, but high-volume cooling may be required for some commercial sites.