New Chair for CPDA

The Clay Pipe Development Association has a new Chairman- Mike Ward from Wavin. Mike lives inYorkshire and is a keen mountain biker & walker. Mike has worked in the construction sector at senior levels for the last 25 years, having been Managing Director at Metsa Wood and Jeld-Wen; he has worked for Wavin since 2018. Mike commented “I am honoured […]

Mike Ward Read More

Business as usual

The UK Clay Pipe industry remains very much open for business. Whilst the early stages of the pandemic reduced demand and resulted in some throttling back of production, all CPDA member companies stayed open to service customer requirements. Deliveries included loads supplied to key infrastructure and healthcare schemes. Although certain construction materials are currently reported as being in short supply, […]

CPDA Business as usual Read More


The eighth edition of Sewers for Adoption (SfA8), entitled “A Design and Construction Guide for Developers” was published as a draft in April 2020 and sets out clear standards for sustainable drainage systems (SuDS) for the first time. Prior to full implementation, this version of Sewers for Adoption will exist alongside versions 6 & 7 of the guide. In that period, while some companies may […]

Sewers_for_adoption_V8 Read More


The chemical resistance of pipe materials has emerged as an important issue, given the increasing development of contaminated brownfield sites. CPDA members are already well positioned in this area, given the excellent chemical resistance of standard clayware; it is for this reason that clay pipes are frequently specified for use on such sites. The performance of standard clay systems can […]

Brownfield_Sites Read More

Site visit to CPDA Member Hepworth Clay

CPDA member Hepworth Clay (Wavin Ltd) recently hosted a visit of fellow CPDA members to their impressive factory in Sheffield showcasing the technology and processes used to manufacture their clay pipes. The Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with separate couplings to be […]

Hepworth Site Visit 2 Read More

CPDA attend the bi annual CEN / TC 165 Wastewater Engineering meeting

Paul Wydell of Hepworth Clay represented CPDA at the bi annual CEN / TC 165 Wastewater Engineering meeting in plenary session. The meeting location which rotates to be hosted by different European standardisation organisations was held by the Cyprus Organisation for Standardisation. The purpose of the plenary meeting was to give and receive updates from all the different European working […]

Read More

CPDA members given tour of W T Knowles & Sons Limited site

CPDA member W T Knowles & Sons Limited hosted a visit of fellow CPDA members to their factory in Elland which included a tour of the site and detailed explanations about the traditional processes involved to make the clay products. W T Knowles & Sons Limited has been manufacturing and supplying an extensive range of clay chimney pots and cowls since […]

Read More

Inspecting sewers from the inside!

Always wanting to continue research into drains and sewers one of our members, Hepworth Clay took a tour underground to inspect the sewers of Antwerp from the inside. The sewers, otherwise known as De Ruien, are a shadow of the rich history above ground. Sewers, streams and fortifications have crisscrossed Antwerp ever since the Middle Ages. This network of both natural […]

Read More

Feugres Meeting

CPDA Council members Mike Shaw and Edward Naylor represented the UK industry at the recent council meeting of Feugres – the European Clay.

Read More

Perfect Pipes at Naylor Industries

CPDA member Naylor Industries were pleased to find some fabulous pictures taken on their Cawthorne site earlier in the year have been entered into the 9th annual Manufacturing Photo Competition run by trade body, the EEF. This year the competition asked photographers to capture the bright future of British Manufacturing and champion the next generation of talent and technology in the […]

Read More