Our Services

Percolation Testing

Understanding ground suitability for off-mains drainage solutions

When designing or reviewing an off-mains drainage system, understanding the suitability of the ground is an essential part of the process.

Percolation testing provides important information about how effectively effluent can disperse through the ground and can help determine whether certain off-mains drainage solutions may be appropriate for a particular site.

Off Mains Solutions provide specialist percolation testing and associated technical assessment to help clients understand site conditions and make informed decisions about appropriate off-mains drainage solutions.

Why Percolation Testing Matters

The suitability of the ground can have a significant impact on the performance and long-term effectiveness of an off-mains drainage system.

A correctly undertaken assessment can provide important information about:

Understanding these factors at an early stage can help avoid unsuitable solutions and support better technical and design decisions.

Percolation testing requirements depend on the type of drainage system and proposed discharge arrangement being considered.

For foul drainage systems, percolation testing can be used to assess whether the ground is suitable for solutions such as drainage fields.

For surface water drainage, different assessment methods may be appropriate depending on the proposed discharge solution and site circumstances.

The correct assessment method should therefore be selected for the intended purpose, as foul drainage and surface water requirements are different and should not be treated as interchangeable.

Different Testing Requirements

How Off Mains Solutions Helps

Our approach ensures that test results are considered within the wider context of the property, proposed system and site conditions.

Off Mains Solutions provide specialist support throughout the testing and assessment process, including:

Understanding the site requirements

Considering ground conditions

Identifying relevant technical considerations

Carrying out appropriate testing and assessment

Interpreting results

Supporting system design decisions

Supporting Different Requirements

Off Mains Solutions provide percolation testing support for:

New developments Existing system reviews Property transactions System design

Helping establish whether ground conditions may support proposed off-mains drainage solutions.

Providing additional technical information when reviewing drainage performance or considering system changes.

Supporting buyers, sellers and property professionals where specialist understanding of drainage arrangements and ground suitability is required.

Providing important information that can assist in developing appropriate off-mains drainage solutions.

Why Choose Off Mains Solutions?

Percolation testing is not simply about obtaining a result. The value comes from understanding what the result means and how it relates to the wider drainage solution.

Off Mains Solutions combine:

This allows clients to make informed decisions based on reliable information and appropriate technical interpretation.

The Off Mains Solutions Approach

Every solution starts with understanding.

By assessing the site, understanding the requirements and correctly interpreting the available information, Off Mains Solutions help clients identify appropriate options for their off-mains drainage needs.

Need specialist support with percolation testing?

Whether you are planning a new installation, reviewing an existing system or requiring technical information to support a property, development or insurance decision, Off Mains Solutions can provide the specialist testing, assessment and guidance you need.

Contact Off Mains Solutions today to discuss your percolation testing requirements.

Specialist expertise for all off-mains drainage matters across the UK.

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Off Mains Solutions Limited
Registered in England and Wales No. 15240762
VAT Registration No. GB 452 8946 57
Registered Address: Wiston House, 1 Wiston Avenue, Worthing, West Sussex, England, BN14 7QL