When designing and installing clay drainage systems, sticking to the Building Regulations and relevant standards is critical to ensure safety, functionality, and compliance. The key regulations and standards include: BS EN 752:2017 (drain and sewer systems outside buildings) BS EN 1295-1:1997 (structural design of buried pipelines). These standards provide guidelines on the layout, gradient, and structural requirements necessary for successful […]

Today at our AGM we said thank you to Edward Naylor of Naylor Industries for his 30 years as a Director of the CPDA. Naylor have been involved with CPDA since it was incorporated in 1965. Edward’s father Allan Naylor had held an important role within CPDA for 10 years before taking up the role of Director from 1990 to […]

CPDA member Wavin recently supplied over 7,000 metres of clay drainage to Hollingworth Brothers for the roads and sewers drainage for a 360 plot housing development. Hollingsworth buyer Geraint Dodd said ‘We knew this was going to be a large, 48-week project so we wanted a product we knew and trusted’. Read more about the project here.

Following a meeting of CPDA members in November 2023 Stuart Steel has been elected as the new chairman (person) of the CPDA. Stuart has previously worked for CPDA member Naylor for 7 years working on the commercial side of the business and looking after technical products including jacking pies and chemical resistant pipes. Stuart is now working with another CPDA […]

The durability of sewer pipelines is a topic which does not seem to get much “airtime” but it is nonetheless an important issue in material selection and it is worth dwelling on the implications for the pipe market. There are a number of areas where pipe longevity appears to be a non-issue. The design life of an out-of-town superstore may […]

The bedding surround for any pipe is critical to support its load bearing capacity. For adoptable drainage bedding surrounds are split in to two categories; flexible and rigid pipes.  A clay pipe system is classed as a rigid pipe system which comes with significant advantages in its load bearing capacity and potential to use as dug materials for back fill.  […]