A BRE Digest 365 infiltration test, also known as a BRE 365 soakaway test, measures how quickly water infiltrates into the ground at a proposed soakaway location. The results help assess whether soakaway drainage may be suitable and provide site-specific data to inform soakaway sizing and surface water drainage design, alongside relevant Building Regulations and local authority requirements.
What’s Involved in a BRE365 Test?
Our BRE Digest 365 (BRE 365) infiltration testing measures how quickly water drains into the ground to help assess whether soakaway drainage may be suitable for your site. We provide the test results and calculations in a clear, comprehensive report within 24 hours of completing the testing, giving your drainage designer site-specific information to inform their design.
- Whats Included
- Site inspection and test location assessment
- Excavation of test pits to required depth
- Controlled water filling and infiltration measurements
- Multiple tests to confirm consistency
- Professional calculation of infiltration rates
- Photographic records and site notes
- Detailed BRE365-compliant report
- Expert recommendations for soakaway and drainage design
Why You Need a BRE365 Infiltration Test
They are essential when designing soakaway systems and sustainable drainage solutions.
Why do I need a BRE365 Test?
A BRE Digest 365 infiltration test measures how quickly water drains into the ground, providing site-specific data to assess whether a soakaway may be suitable and to inform surface water drainage design. BRE Digest 365 is design guidance; testing is not a blanket requirement for every project, but is important where soakaway drainage is proposed and may be requested by your drainage designer or relevant authority. Testing can identify unsuitable ground early and help reduce the risk of drainage problems, surface water flooding and costly redesign.
BRE 365 infiltration testing is for homeowners, architects, developers, builders and drainage professionals assessing surface water drainage for new developments, extensions or drainage upgrades. The test measures how quickly water infiltrates into the ground, providing site-specific information to help determine whether a soakaway may be suitable and inform its design.