Before operating, read the owner’s manual and follow all safety precautions. It’s essential to familiarize operators with the operation – start, stop, valves on / off, etc. prior to usage on a job site. 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′ in 3 – 5′ 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 job site and the jetting access point determined, get ready to start jetting. Test the unit’s supply hose to ensure adequate water supply.
Caution: Pressurized water can cause serious bodily harm. Always follow the manufactures recommended operating procedures for all jetting pumps, nozzles, and accessories.
- Before each use, carefully inspect the nozzle body for damage such as cracks, worn threads, and obstructed orifices. Replace damaged or worn nozzles immediately.
- Thread sealant is generally recommended on NPT threaded nozzles.
- 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. Mark the last 15′ of the hose – either with spray paint or tape in 5′ sections. This will allow the operator to determine when the nozzle is close to the entry of the clean out.
Contractors need to monitor the site prior to working in any manhole. Check with local authorities and use a gas detector to check for VOCs. If the area is determined to be unsafe, the contractor must make it safe prior to excavating or cleaning by ventilating from the downstream manhole and rechecking. Site conditions must be monitored continuously while work is performed. We also recommend a minimum of two personnel per job – one operator and traffic director or second person at the upstream manhole to signal that the hose has reached its destination. Depending on local regulations, hard hats may be required. Highly visible orange or yellow safety vests are essential when working the street. Flashing beacons on your truck or equipment, orange traffic cones, and caution tape can also help alert passerby’s to the presence of workers onsite. Contractors – do not overlook the obvious – rubber gloves and face shields. All equipment and accessories must be carefully maintained to ensure maximum safety during operation and use. A ripped jetter hose is dangerous and must be removed from use. We caution operators to never use more than 4000 PSI for sewer and drain cleaning applications to avoid pipe damage. When in doubt start with a lower pressure and increase incrementally as necessary.
HotJet USA manufactures sewer jetter trailers and trailer mounted drain line jetters. For over 25 years, we’ve specialized in hydro jetters and diesel sewer jetters. We also specialize in hot water sewer jetter systems and have a new line of cart drain jetters and propane jetters. Call today for expert sewer jetter equipment advice!