Wavin Plastics - First UK trial of non-entry inspection chambers
in adoptable sewers demonstrated on DVD
Following the successful trial of non-entry inspection chambers
in adoptable sewers on a new housing development, Wavin Plastics has
produced a DVD to showcase their successful project and encourage
other water companies and house builders to adopt this new and
innovative approach to drainage.
The video shows how this pioneering new product has benefited a
brand new community in Leeds, following a joint partnership between
Wavin Plastics, Yorkshire Water and Miller Homes.
The site - Allerton Bywater Millennium Village - which is one of
seven English Partnership Millennium Communities, has been designed
according to Planning Policy Guidance 3 (PPG3) principles. This has
meant a high housing density has been achieved, which has in turn
resulted in the reduction of physical space for drainage. Due to
these factors, Yorkshire Water agreed to a trial of non-entry
inspection chambers for use in both demarcation and main adoptable
sewers.
“Yorkshire Water took a very bold step in embracing this idea of
using non-entry inspection chambers on adoptable main sewers,”
commented Lynton Barstow, Wavin Plastics. “This was a major
breakthrough and is a principle that to date has not been considered
by any other water authority. By publicising Allerton Bywater
through our DVD, we hope that more water companies will consider the
use of non-entry inspection chambers on adoptable sewers in the
future”. Copies of the DVD are available by calling Wavin Plastics
literature department on 01249 766333 or emailing literature@wavin.co.uk
Non-entry inspection chambers, like those used at Allerton Bywater,
are a welcome alternative to traditional concrete manholes. Wavin
Plastics product, OSMA Tegra 600, has been manufactured to provide
easy installation, inspection and maintenance primarily to
non-adoptable domestic and commercial drainage systems.
This innovative non-entry inspection chamber is a much safer and
cost-effective alternative to traditional concrete ring manholes
during installation and occupation.
Tegra 600 is constructed from strong polypropylene. It is much
lighter and easier to handle on site than large concrete manholes,
which need to be lifted into place by heavy machinery. The Tegra 600
chamber can be installed by hand and backfilled in a day, typically
three times faster than a concrete manhole. The result of this speed
and installation is a significant cost saving.
Trevor Birch, new development manager, Yorkshire Water, commented:
“We had actually been considering the use of smaller, non man entry,
plastic inspection chambers for some time so it was excellent timing
when we were approached to take part in this trial. The high density
housing at Allerton Bywater means that space is at a premium and
therefore the site provided us with a good opportunity to look at
the method and to combine the use of plastic pipes and inspection
chambers.”
Carolyn Rushbrook, sales and marketing director of Miller Homes,
Yorkshire Region, commented:
“We are delighted to have pioneered these non-entry inspection
chambers at Allerton Bywater. The ground-breaking health and safety
implications for those working on site made them the perfect choice
for a development as innovative as Allerton Bywater Millennium
Village."
The installation advantages and health and safety benefits
associated with Wavin Plastics’ OSMA non-entry inspection chambers
were particularly important to Hewlett Civil Engineering, the site’s
contractors.
Jim Roberts, Hewlett site manager, commented:
“The speed that this system can be installed has given some great
savings to programme time and cost. In fact 95% of the first phase
of ground works at Allerton Bywater has been completed ahead of
schedule. And the fact that we were handling material which was so
light in weight in comparison to the conventional clay or concrete
drainage systems was the biggest plus for us with regard to safety.”
The Allerton Bywater Millennium Community has rejuvenated and
expanded the former mining village with new housing, commercial and
community space. The site comprises 520 homes and 25,000 sq m of
commercial and community space.
Email:
steve@watermarkpr.co.uk
Arundel Jones Associates Ltd
Hill Farm, Linton Hill, Maidstone, Kent ME17 4AL
Tel : 01622 745333
news@buildingdesign.co.uk
Registered in England and Wales No. 07334149
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