A sewer jetting machine uses water blasted at high pressure (2,000 to 3,000 psi) to clear a clogged pipe of debris that is difficult to remove by conventional means. Just imagine having a power equivalent to dozens of garden and fire hoses keeping your pipes clean. This is usually employed in accessing hard-to-reach areas of the pipe.
While plumbers have their own sewer jetting machines, residents could also have a weaker version of these devices. The machines differ notably in size, source of energy, and the amount of pressure they can yield to push out the clog. Here are the three main types of sewer jetting machines and how they fare with each other.
At two gallons per minute (GPM), electric sewer jetting machines are the weakest of the three available models in the market. As the name implies, they use electric water pumps to generate enough pressure to unclog pipes. However, the fact that it is not as strong as the other washers does not mean it’s entirely useless.
Some people use the electric variants for a more controlled sewer maintenance job. Electric washers can be used to unclog smaller pipes in the plumbing system, preferably pipes no more than four inches in diameter. In total, the electric variant generates around 2,000 psi.
As with furnaces and boilers, gasoline engine-driven sewer jetting machines surely produce more power for unclogging a pipe. Capable of delivering between 2.5 to 2.9 GPM, the residential gas variant is ideal for sewer-jetting pipes that are a bit bigger. Your hose, however, needs to be at least 100 feet in length for maximum effect.
The residential gas is the typical choice for DIY general sewer maintenance and cleaning. In total, it can deliver a force between 2,000 and 3,000 psi, perfect for the more stubborn clogs. Like its electric cousin, the residential gas sewer jetting machine is ideal for cleaning pipes no more than four inches in diameter.
Contractors like Milani are among the most common users of commercial gasoline-powered sewer jetting machines, capable of delivering around 3.5 GPM. Due to its tremendous power, the hose has to be larger in diameter to accommodate and maintain the pressure. The commercial gas variant is typically used for sewer installation and other sewer-related services that require a professional on the field. With a total power of around 3,000 psi, this machine can pack a punch against the most stubborn of clogs in pipes up to six inches in diameter.