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CEMSA Insights
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May 4, 2026

CEMSA's Range of Drain Jetting Units

Although manual plumbing is an efficient way to mechanically remove waste from drains, high-pressure drain jetting takes this process even further by using water jets to pierce through debris, and blockages inside drain pipes. CEMSA manufactures a range of drain jetting machines that are trusted by plumbers across Africa:

Entry-Level PWJ Machines

Our standard mobile PWJ pressure-washers deliver anything from 23 to 50 litres of water per minute and are best suited to applications that use standard garden water supplies. Built with purpose, and the operator in mind, the unit’s compact design makes it convenient to fit on the back of a farm vehicle or pick-up-truck. Our range of entry-level PWJ machines can effectively clean and unblock drains from 40-450mm in diameter.

PWJ Trailer Machines

CEMSA single axle drain jetting trailers are ideal for mining, residential, and plumbing applications. The machines are equipped with a 500L tank which may come in handy if your site has limited water access. These machines deliver between 30 and 50 litres of water per minute, which make them ideal for bigger jobs like cleaning heavy-duty blockages. The drain jetting trailer is the go-to unit for unblocking and cleaning pipes that range from 75 to 450mm in diameter.

Why CEMSA Drain-Jetting High-Pressure Washers?

Our day-to-day may involve building a range of high-pressure machines, but our vision is to engineer the next generation of high-pressure cleaning solutions for the African market.

Rather than being designed to replace the plumbing rod system, CEMSA drain jetting machines can effectively work with it. Our drain jetting units come standard with a hose reel that can hold up to 70 metres of drain hose, and a drain cleaning nozzle, allowing the operator to clear pipes of any blockages and debris. Together with a built-in wash-down gun, this high-pressure accessory allows you to clean your workspace and leave it in a clean and tidy condition.

CEMSA’s PWJ range is equipped with high-quality Hyundai engines and heavy-duty gearboxes. These units are multifunctional, capable of operating with both rotary nozzles and sludge pumps, enhancing the machine’s ability to clear drains by removing excess waste.

By investing in our drain jetting units, you will be equipped with everything you need to get the job done efficiently and effectively. Bear in mind that CEMSA stocks a large availability of high-pressure spare parts. To find out more about our drain jetting solutions and ensure that your machine is operating at maximum performance, reach out to us or your nearest distributor today.