Advantages of using variable pressure tanker trucks for unblocking drains

Aug 3, 2025

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A tanker truck is a vehicle specially designed for comprehensive unblocking and cleaning services for sewerage networks. It consists of two compartments: one for pressurised clean water and the other for waste. What makes it particularly effective is its ability to adjust the water pressure from gentle ranges to over 250 bar, adapting to each type of blockage without risk of damaging pipes or installations.

This dual system allows for maximum efficiency and safety when operating in domestic, community, industrial, or septic tank networks. For more technical information on how it works, please refer to this industry-specific article: Drain cleaning trucks: uses, functions, and benefits.

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Main advantages of the variable pressure system

More precise unblocking without construction work

Pressure regulation allows roots, grease, or sediment to be removed without damaging walls or coatings. Unlike manual or mechanical techniques, there is no need to open floors or carry out any construction work, making it ideal for:

  • Community downspouts

  • Manholes that are difficult to access

  • Saturated siphons

  • Septic tanks with blockages

This system is key to our pipe and manhole unblocking services, which require fast, clean interventions without the need for construction work.

Simultaneous thrust and suction

A key advantage of the system is the combination of injecting pressurised water and sucking up waste at the same time, which:

  • Prevents overflows and spills

  • Reduces the risk of persistent odours

  • Get your network ready to go immediately

This technology guarantees thorough cleaning in a single operation.

High versatility in different installations

These trucks are perfectly suited to a variety of environments: single-family homes, communities, commercial premises, or municipal collectors. In addition, their adjustable pressure and the use of specific nozzles allow for precise work on any sanitation system.

For example, they are used in cleaning septic tanks and cesspools where it is necessary to vacuum accumulated solids and clean internal walls without damaging the structure.

Preventive maintenance that avoids emergencies

Variable pressure is also used in periodic maintenance tasks. Regular interventions can prevent future blockages, which:

  • Extends the service life of the hydraulic system

  • Reduce the frequency of emergencies

  • Optimise long-term costs

At Limpiezas Domingo, we offer tailored solutions through preventive maintenance contracts for sanitation networks in homes, communities, and businesses.

Economy and environmental respect

Although the initial investment may be higher than basic methods, the efficiency of the system reduces future costs and avoids the need to repeat actions. In addition, many trucks are equipped with water recirculation systems, which reduce water consumption, and all waste is managed in authorised plants, ensuring regulatory compliance and minimising environmental impact.

Case studies in the Marina Alta region

Neighbourhood community in Calp

In a residential area with downspouts frequently clogged with greasy waste, a tanker truck with variable pressure set to 160 bar was used. The result was the complete removal of the blockage without the need to remove pipes, and after annual maintenance, no further incidents have occurred.

Restaurant in Teulada

An industrial kitchen with drains clogged by oil and food waste was quickly resolved using the variable pressure method combined with suction. The system was immediately operational, without the need for prolonged closures or internal intervention.

Frequently asked questions

What is the difference between fixed pressure and variable pressure?
Fixed pressure applies constant force without adapting to the material or condition of the pipe, which can cause damage. Variable pressure is adjustable, offering precision and safety depending on the type of blockage and the material.

How much pressure do these devices have?
They can be adjusted between approximately 50 and 250 bar or more, with nozzles calibrated for each situation and type of pipe.

Is it for preventive cleaning or only emergencies?
Yes, many specialised companies use variable pressure in regular maintenance programmes to prevent waste from accumulating and causing blockages.

Can it be used in septic tanks?
Yes, it is used to clean filters, walls, inlet or outlet pipes without damaging the septic system.

What is the capacity of the vats?
Vehicles usually have tanks ranging from 1,500 L to 16,000 L, adjustable with movable partitions that allow clean water and waste to be combined in the same tank.

Why choose Limpiezas Domingo in Marina Alta?

At Limpiezas Domingo, we have a modern fleet of variable pressure tanker trucks and trained operators. We offer:

  • Technical unblocking without construction work, even in complex networks

  • Simultaneous cleaning by impulse and suction

  • Preventive maintenance tailored to recommended frequencies

  • Comprehensive services for drains, manholes and septic tanks

We work in compliance with environmental regulations and technical safety standards in every project.

The variable pressure tanker truck combines power, efficiency and versatility, making it the most comprehensive solution for unblocking and maintenance in homes, communities, businesses and public environments. Its effective and adjustable cleaning capacity removes blockages without causing damage and with maximum performance.

At Limpiezas Domingo, we offer this service throughout the Marina Alta region with our own equipment, experience and technical guarantee.
Request a free assessment now and protect your sanitation network from blockages and breakdowns.

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