While incidents and injuries are rare with the operation of jetting equipment, it is imperative that all operators read the safety and operating instructions provided by the jetting equipment manufacturer before using any high-pressure water blasting equipment.


Drain and sewer cleaning can be dangerous if proper procedures are not followed and appropriate safety gear is not utilized. HotJet USA highly recommends that every equipment operator participate in hands-on safety and operational training for the equipment that they will be operating.


Before operating, read the owner’s manual and follow all safety precautions. It is essential to familiarize operators with the operation — start, stop, valves on/off, etc. prior to usage on a jobsite.


Caution: Pressurized water can cause serious bodily harm.


Always follow the manufacturer’s recommended operating procedures for all jetting pumps, nozzles and accessories.



  1. Before each use, carefully inspect the nozzle body for damage such as cracks, worn threads and obstructed orifices. Replace damaged or worn nozzles immediately.

  2. Thread sealant is generally recommended on NPT threaded nozzles.

  3. During manual sewer, drain, pipe or tube cleaning operations, the nozzle must be inserted into the line before pressurizing the system. Be certain the nozzle is inserted far enough into the line that any backward facing jets do not pose a hazard to the operator. Always depressurize the system before removing the nozzle. Also, before going on a job, the contractor should ensure that all hoses are marked with bright electrical tape or spray paint from the last 15 ft, in 3- to 5-ft sections, from the end of the spray nozzle. This provides less chance of pulling the nozzle out of the pipe with full pressure in the lines. Once at the jobsite and the jetting access point determined, get ready to start jetting. Test the unit’s supply hose to ensure adequate water supply.


Read the rest of this article by downloading the How To Guide.

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