Jet-Set Drain Cleaners use high water pressure pushed through a hose and ultimately a nozzle to blast against soft stoppages and disperse them away. A soft stoppage refers to substances that are normally soft like grease, sludge, sand, excessive toilet paper, rice or other food particles, oil, soap, and the list goes on.
But get this; Jet-Sets are also capable of clearing ice blockages. A 3000 psi gas jet can clear a 4" frozen mainline at an approximate rate of one foot per minute. The smaller electrical Jet-Sets will take twice that long since they are only capable of producing 1500 psi.
These Jet-Set Drain Cleaners work exceptionally well for grease stoppages. If high-speed cable machines are used for grease stoppages they may push through the stoppage and allow water to flow, but may not entirely clean the wall of the pipe. If this happens then it may not be long before the grease builds up again or other particles get caught on the grease causing yet another stoppage. Most Jet-Set nozzles actually pressure wash the inside pipe walls while pushing through the stoppage. Once past the stoppage, you could let the hose nozzle continue to work to the end of the drain line allowing the nozzle to clean the entire inside wall of the pipe.
There is now available a chain saw nozzle for Jet-Sets that is designed for cutting roots in 4", 6", or 8" drain lines. It attaches like any other Jet-Set nozzle and water pressure drives the chain to spin up to 10,000 RPM. (revolutions per minute). Unfortunately, this chain saw nozzle will not work with the smaller electric powered Jet-Sets because they need the higher 3000 psi pressure to make them spin correctly. However, according to General Wire, a 4" chain saw nozzle can be used in 3" drain lines by reducing the length of the chain.
For hard stoppages other than roots, and for roots in 3" or smaller drain lines, you may need to use a different machine that uses heavy-duty cables at high speeds.
Hard stoppage is a term referring to actual hard type items causing drain blockages. For instance, roots in the drain line, or rags, kids toys, or maybe even a chicken bone that somehow ended up in the drain. You would really be surprised at what children and occasionally even grown-ups are capable of flushing down a toilet. In larger sewer main lines you could run into blockage situations that were caused by multiple objects. General Wire Spring Company offers four gas Jet-Set models and three electric Jet-Set models.
Every Jet-Set comes with the following standard safety features: a back-flow check valve, an inlet filter, and a thermal relief valve for pump overload protection. The thermal relief valve will protect the pump if water temperature in the pump increases to 140°F (60°C) by opening and releasing the hot water out of the pump and allowing the cooler water from the fresh water supply to enter into the pump. The inlet filter will prevent sediment or dirt or rust particles from entering the pump from the fresh water supply. The pump creates the pressure needed to allow the jet nozzles to work correctly. The back-flow check valve is designed to keep water in the pump from being pushed back into the cold water supply thus preventing possible drinking water contamination.
All of the Jet-Set models not only clear drain stoppages but can also be used as a pressure washer. The Jet-Set Gas models #JM-3080, #JM-3055 and the #JM-3000 come standard with a spray wand and chemical injector. The Jet-Set gas model #JM-2900 and all of the electric models are available with optional spray wands and chemical injectors sold separately. One tool, two uses.