Sewer jetting machines and pressure washers are completely different setups, with different hoses and ways to control the flow, and generally sewer jetters are 4500-6000 psi, vs your typical 2500-4000 for
Experience has shown that a 3,500 to 4,000 psi jetter with 6 or more gpm and the right nozzle or tool will cut out root masses, chop up hard grease, and carve out hard settled dirt. We've shipped dozens of jetters that do 9 gpm/4,000 psi for cutting out this kind of crud from 3- to 8-inch drains and sewers.
Hydro jetting uses a specialized hose and nozzle to shoot water through your pipes at a force of around 1500 psi on average (although that number can rise to 5000 psi), which is one reason you need a skilled plumber to do the job.
Normal Pressure. In waterjet cutting, normal pressure refers to a water pressure of up to 60,000 psi. Of course, this value is not 'normal' compared to the water pressure in non-cutting applications. However, compared with a hyperpressure pump which goes from 60,000 psi to 90,000 psi, or higher – it is 'normal'.
“Thinner” high-pressure waterjet streams from a good jetting nozzle will have the most 'cutting' power if the PSI is adequate; experience has shown that a 3500-4000psi jetter with 6 or more GPM and the right Warthog nozzle/tool WILL cut out root masses, chop up hard grease, and carve out hard settled dirt.
Watch as the Brute 4009 jetter with a JNW-Reaper-9 literally shreds 3 feet of compacted roots with the Brute 4009 running at just over 7 gpm and only 3,000 psi (the 4009's max is 9 gpm/4,000 psi).
These machines offer higher flow rates, suitable for larger pipes. A residential gas pressure washer with 2.5 to 2.9 GPM and close to 3,000 PSI can effectively clean drains up to 4 inches in diameter. For commercial-grade cleaning, look for units delivering around 3.5 GPM and rated at least 3,000 PSI.
High Pressure Flexible Lance
✓ Mainly used in hydro jetting applications of pressure up to 1400 bar.
If the gauge reads 40 PSI when the hose is filled with water, we know that the elevation is 92.4 feet. We simply take 40 PSI x 2.31 which equals 92.4. This is not distance, but feet of head.
Insert the hydro jet's nozzle into the opening of the sewer line. Carefully start spraying the hydro jet into the sewer line. Be prepared for there to be some back spray; when the water from the hydro jet hits the clog, it will spray back at you.
Hydroblasting activities make up 2 categories:
High-Pressure hydroblasting, which ranges from 690 bar (10000 psi) to 1700 bar (25000 psi) Ultra High-Pressure hydro blasting that ranges from 1700bar (25000 psi) and above.
Let's talk about the elephant in the room: cost. Hydro jetting can be pricier than traditional methods due to the equipment and expertise required, with average hydro jetting costs ranging anywhere from $800 to $2,500 depending on the scope and complexity of the piping system.
Regular sewer jetting can eliminate clogs before they become full on blockages. We also recommend that you jet the sewers when you move into a new home, as you never know what condition the sewer line was left in by the previous owner.
The plumber then uses the jetter to send a high-pressure blast of water roaring down the sewer line. The water is often pressurized at up to 3,500 pounds per square inch (psi), so it travels down the line with tremendous speed and force to clear clogs and flush out built-up debris.
By selecting the appropriate accessories, you can transform your pressure washer into an effective hydro jetter for tackling clogged drains or rinsing sewers.
How much does it cost to Hydrojet old pipes? On average, hydro jetting old pipes can cost between $350 and $600, though in more severe cases it could be up to $1,000 or higher.
High-pressure water jetting can be just pure water or water with abrasives, cleaning chemicals or other additives at an operating pressure of between 10,000 to 25,000 psi (70 to 170 MPa) from a system that includes an engine, pump, water storage tank hose, specialized nozzle and other accessories.
The Difference Between Pressure Washers & Sewer Jetters
Unlike pressure washers, sewer jetters are explicitly designed to remove blockages or buildup. They feature a lightweight, abrasion-resistant hose with more flexibility than pressure washers. They also use custom-made nozzles to pull the hose through the pipe.
As you can see filling up the column of water to a height of 2.31 feet gives us a pressure at the base of 1 psi. This is where things get interesting if you like math.
High-pressure water jetting (HP WJ) uses water pressure between 10,000 to 25,000 psi (700 to 1700 Bar); Ultrahigh-pressure water jetting uses pressures above 25,000 psi (1700 Bar).
High-pressure water jetting refers to water pressure between 680 and 1700 bar (10000 - 25000 psi).