Location:

Sewage Farm

Pickett’s Lock

Enfield

London

Project Description:

Protecting a set of 1m pipe work

from future damage by Japanese

Knotweed.

Technical Requirements:

• To protect sewage pipes from

encapsulation by Japanese

Knotweed

• Prevent future damage to

pipe work from the invasive

weed

Contractor:

PGSD Ltd

Fleming Road Harrowbrook Industrial Estate

Hinckley LE10 3DU

Tel. 01455 617 139 sales@geosyn.co.uk

www.geosyn.co.uk

Case Study

KnotBlock®

Andy Lucey - Director - PGSD Ltd

Sewage Farm, Pickett’s Lock

“We were supplied with KnotBlock® membrane and joining tape to encapsulate the pipes protecting them from Japanese Knotweed during construction. KnotBlock® was chosen due to the durability

of the product. Delivery was requested at a specific time due to the amount of deliveries into site, this went without problems. I will be

using this product for future works without hesitation”.

Site preparation pre installation Lining the trench with KnotBlock®

Encasing the pipe work with stone Laying KnotBlock® on the top of the pipework

With Japanese Knotweed being present on the Sewage Farm, PGSD Ltd required a product which would protect their pipework from the invasive weed. Geosynthetics Limited provided KnotBlock® 1.0 mm Geomembrane as a solution.

Geosynthetics Limited | Fleming Road | Harrowbrook Ind Est | Hinckley | Leicestershire |LE10 3DU