A pressure washer can be used in most types of buildings, but there are some important limitations. The method works well in single-family homes, apartment buildings, commercial buildings and public buildings when the sewage system is available and in good enough condition. Availability of sewage pipes, pipe quality and the technical conditions of the building affect whether high-pressure cleaning of sewage is possible. This answers the most common questions about where and when a pressure washer can be used.
What is a car wash and how does it work?
A drain cleaning truck is a purpose-built vehicle equipped with a high-pressure pump and long hoses that is used to clean drain pipes. The method works by spraying water into the pipes at very high pressure, usually between 100 and 200 bar. This high-pressure drain cleaning effectively removes deposits, grease, hairballs, soap scum and other materials that have stuck to the pipe walls.
The technician inserts a special nozzle into the drain that sprays water both forward and backward. The jet of water loosens and flushes away whatever is clogging the drain. At the same time, the water pressure propels the nozzle forward through the pipe. This method solves most types of drain problems, including:
- Clogged drains from grease and food waste in the kitchen
- Hair and soap scum in the bath and shower
- Limescale deposits in older pipes
- Roots that have penetrated exterior drain pipes
- General accumulation of dirt over time
The equipment on a flushing truck includes a water tank, a powerful high-pressure pump and nozzles in various sizes adapted to different pipe dimensions. Modern flushing trucks also have camera equipment that allows the technician to inspect the pipes before and after flushing to ensure that the job has been thoroughly done.
What types of buildings can a water truck be used in?
A flushing truck can be used in single-family homes, apartment buildings, commercial buildings, public buildings and industrial facilities when conditions are right. The most important thing is that there is sufficient access to the sewage system and that the pipes can withstand high-pressure treatment. In single-family homes, the method works excellently for both internal and external sewage pipes when it is easy to get to the inspection hatches or sumps.
In apartment buildings and blocks of flats, a flushing truck is used for both communal drains and individual apartments. Flushing a block of flats usually requires planning as the work can affect several residents at the same time. Accessibility to the main trunks and branches in the building is important for the job to be carried out efficiently.
For commercial buildings such as offices, shops and restaurants, a flushing truck is often the preferred solution. A flushing truck for commercial buildings handles larger amounts of wastewater and more complex systems. Restaurants and commercial kitchens in particular have a need for regular sewage flushing due to grease deposits.
Public buildings such as schools, hospitals and sports facilities have extensive sewage systems where a flushing truck is an important part of maintenance. Industrial facilities with special sewage needs can also use the method, but here one must consider what kind of substances are passing through the pipes.
The design of the drainage system significantly affects the possibility of using a flushing truck. Buildings with modern pipes and accessible inspection points are easiest to work with. Accessibility means that the flushing truck must be able to park close to the building and that the hoses must reach the drainage points.
Are there situations where a car wash cannot be used?
Yes, there are several situations where a water jetting truck is not suitable or possible to use. Poor accessibility is the most common limitation. If the water jetting truck cannot get close enough to the building, or if there are no inspection hatches or manholes to run the hose through, the job becomes difficult or impossible to do.
Very old pipes, especially those from before the 1960s, may be too fragile to withstand high-pressure flushing. Clay or concrete pipes that have become brittle over time can be damaged by water pressure. In such cases, the technician must consider whether lower pressures can be used or whether other methods are better.
Already damaged pipelines should not be high-pressured. If the pipes are cracked, broken or have collapsed, high-pressure flushing may worsen the damage. In this case, the pipes must be repaired or replaced before normal flushing can be performed.
Special building conditions can also limit its use. Buildings with very complex drainage systems, many kinks or unusually narrow pipes can be challenging. In some older buildings, the drainage system is so confusing that it is difficult to find the right path through the pipes.
Alternative solutions in such cases include:
- Mechanical staking with spirals for smaller seals
- Chemical cleaning for moderate deposits
- Camera inspection to map the problem before choosing a solution
- Replacement of pipe sections in case of serious damage
- Digging and repairing external pipes
How do you know if your building needs a water truck?
There are several clear signs that indicate that you need a drain cleaning. Slow drainage is often the first symptom. When water sits in the sink, shower or toilet for a long time before draining, it indicates that something is restricting the flow of water in the drain. This usually gets worse gradually over time.
Backflow from a drain is a more serious sign. If water is coming up into drains or other drain points when you use water elsewhere in the building, it is likely that the main drain is clogged or partially blocked. This requires quick action.
Drain odor is another common symptom. Unpleasant odors coming from drains, sinks, or toilets can be caused by deposits that have built up in the pipes. Bacteria and organic matter that have stuck to the pipes often emit a strong odor.
Repeated blockages in the same drain indicate that the problem has not been properly addressed. If you keep having to unclog the same drain using simpler methods, it is likely that a thorough high-pressure cleaning is needed to remove all deposits.
Gurgling sounds from the drain as water flows down can indicate that air is not flowing freely in the system. This often happens when deposits restrict the pipe cross-section.
You should contact professional help when:
- Simpler methods do not solve the problem
- Several drains in the building are affected simultaneously
- You experience backflow from the drain
- The problem returns shortly after cleaning
- It's been a long time since the drain was thoroughly cleaned.
How do we help with drain flushing?
We quickly connect you with qualified professionals who can perform drain flushing when you need it. Our customer service is available 24/7, all year round. When you call us, we assess your situation and ensure that the right professional with the necessary equipment comes to you.
This is how our service works:
- You call us free of charge on 401 24 700 when you discover drainage problems.
- Customer service assesses the situation and provides immediate advice if the problem can be solved easily.
- If you need a car wash, we connect you with qualified partners in your area.
- For urgent assignments, a professional can be on site in less than one hour.
- Scheduled assignments are usually completed the same day or next business day.
- The professional carries out the job from start to finish with professional equipment
Our network of installation partners covers the whole of Norway. This means that you will get help no matter where in the country you are. Our partners have extensive experience with drain flushing in all types of buildings.
The benefits of using our service include immediate customer service that can advise you right away, free consultation and guidance, quick response in emergency situations, and reliable professionals who perform the work professionally.
Call 401 24 700 for emergencies or visit 24center.no for scheduled visits. We will help you get your drains in order quickly and efficiently. Please contact us for more information about our services.
Vanlige spørsmål
How much does it cost to rent a sewage cleaning truck?
The price for drain flushing varies depending on the scope of the job, the type of building and how accessible the drain system is. A typical job for a single-family home costs between 3000-8000 NOK, while larger buildings or more complex assignments may cost more. Urgent urgent assignments outside normal working hours usually have a surcharge. Contact us at 401 24 700 for a specific price quote based on your situation.
How long does it take to flush a sewage system?
For a single-family home, a standard drain flush typically takes 1-3 hours, depending on the size of the system and how blocked it is. Apartment buildings and commercial buildings may require longer, especially if multiple drain branches need to be treated. The job includes preparation, the actual flushing, and often a camera inspection to confirm that the problem has been resolved. The technician will provide you with an estimate once he assesses the situation on site.
Can a water truck damage my sewer pipes?
When the job is done by experienced professionals, the risk of damage is minimal. Professional technicians adjust the pressure according to the pipe material and condition, and use lower pressures on older or fragile pipes. Modern PVC and cast iron pipes can withstand high-pressure flushing without problems. Before flushing, the technician should always assess the condition of the pipes, and if in doubt, camera inspection can reveal any existing damage that needs to be repaired first.
How often should I flush the drains in my building?
For single-family homes, preventive drain flushing is recommended every 3-5 years, depending on usage patterns and water quality. Restaurants and commercial kitchens should flush their drains annually or more frequently due to grease deposits. Apartment buildings and commercial buildings often need flushing every 2-3 years. If you experience repeated problems, the interval should be shortened. Regular maintenance prevents costly emergency situations and extends the life of the drain system.
What is the difference between a flushing truck and regular sewer cleaning?
Spiral staking is a mechanical method that drills through seals, but does not necessarily remove all deposits on the pipe wall. A jetting truck uses high pressure to thoroughly clean the entire inner surface of the pipe, removing grease, limescale and other materials that staking does not remove. A jetting truck is more effective for extensive cleaning and preventative maintenance, while staking may be sufficient for simple, localized seals. For serious or recurring problems, a jetting truck is the best solution.
Do I need to prepare anything before the cleaning truck arrives?
Make sure the technician has free access to inspection hatches, sumps and drain points both inside and outside. Remove any objects blocking access, and inform any residents that water use may be restricted during the work. If the vehicle has to park on the street, it may be a good idea to reserve a space. In the case of apartment buildings, you should notify neighbors and, if applicable, the condominium in advance. The technician will give you further instructions when you make an appointment.
Does a flushing truck also work for external drain pipes and mains?
Yes, a water jet is particularly effective for exterior drains and mains from the building to the municipal network. The method removes roots that have penetrated pipe joints, as well as soil and other deposits. Exterior flushing requires access to manholes or inspection points along the pipeline. For roots that return, the technician may recommend follow-up measures such as pipe repair or root barriers to prevent future intrusion.


