Understanding High-Pressure Sewer Jetting


There is nothing more frustrating than a clogged sewer system. Sewer systems can become blocked for a number of reasons. When high-pressure water is used to clean and clear sewer and drain lines, it is called sewer jetting. With the process of sewer jetting, a high-pressure water dispenser is used to power water through the sewer lines. The pump that is used for this type of cleaning needs to have a suitable pressure (usually expressed in psi – pounds per square inch) and water flow (usually expressed in gpm – gallons per minute) rating. The pressurised water is sent into the sewer line by means of a high-pressure jetting hose. The nozzle at the end of the hose is used to control the pressure of the water and how it is directed. The longer the hose and bigger the hose diameter, the less forceful the water jet will be.


Sewer jetting is considered a far preferable method of cleaning out drain and sewer lines than rodding, as water is more versatile when it comes to clearing blockages. The angle of the water stream can be adjusted and directed in order to clean walls and pipes from various different positions. When rods are used to clear out pipes, not much can be done if the blockage is particularly severe or if one cannot manoeuvre the pipe in the correct manner and angle to actually break up or remove the blockage.


Specifically when it comes to clearing clogged sewer lines, a nozzle that is designed with a forward jet is used. These types of jets are designed to use a limited amount of water to cut through blockages, so water consumption remains within reasonable limits, while delivering sufficient cleaning power. While the forward jet bores into a blockage, the rear jet, which delivers a greater water flow, is used to push the majority of the blockage away. The forward jet is only used to assist the water flow. Once sufficient flow is achieved, a rear jet is used for the main cleaning and clearing. Common sewer blockages where such a jet is particularly useful is root mass blockages.


Many storm drains become blocked up with sand, gravel, and debris. Sewer jetting can be used to clear out these types of blockages. Sewer jetting is also highly affective to clear away grease that accumulates within pipes and causes a blockage that worsens over time. In this instance, high-pressure jetting with a rotary spinning nozzle is used to effectively clear grease and fatty deposits out of the pipes.


At Bestline Manufacturing in Johannesburg, we stock a range of sewer jetting pressure cleaners that are effective for clearing sewer blockages of all types. Our products are designed to offer effective and powerful cleaning, even in the toughest of environments. If you would like to find out more about our sewer jetting pumps, or about the process involved, take the time to contact us via email or telephone today. The team at Bestline Manufacturing are always ready to assist you with your pump and high-pressure cleaning product needs.