A FLEET of 24 Siltbusters are dotted along a 120 km Milford Haven to Aberdulais gas pipeline that will ultimately connect South Wales with Gloucestershire. The line will be buried underground, up to a depth of 7 m where it passes under roads and railways. In Carmarthen, near Swansea, it crosses both within a few hundred metres of each other.
Dutch contractor NACAP has brought in a cluster of four units on this par t icular spot.
According to Chris Clement, environ-ment monitor for NACAP, the main concerns are usual runoff issues and silt pollution.
He says the amount of silt is 'frightening' in times of high rainfall.
When the project began in January 2005 they only had two units, which have since multiplied into 24 in less than a year.
'We still need more, ' Mr Clement says.
'For two months we thought 'where are we going to put them?' Now they are the first things we think of. Without a doubt we'll use them on the next project.'
Opening up trenches and shafts in which to lay the pipeline, NACAP inevitably encountered water, but they soon found settlement tanks were not a sufficient measu re. So they started hiring machines from Siltbuster and never looked back.
'We've spent quite a lot of money on them. For something that will keep us out of court it's a price we're willing to pay. Ideally, we'd have a Siltbuster for every single pump. We were amazed at how clear the water was coming out.'
Twenty-four Siltbusters are in use on a 120 km pipeline