Chopper pumps take no prisoners at HMP Peterborough 08 June 2012

Huntingdon-based solids pumping and mixing specialist P&M Pumps has helped engineers at Peterborough prison to eliminate blocked pumps problems.

P&M's Vaughan chopper pumps were considered for the site back in 2004, but rejected at the time, on cost grounds.

However, the prison population has increased to around 900 and last December (2011), the engineering services firm contracted to maintain pumps, sewers and pipe work systems on the site called P&M for assistance.

Frequent blockages of the installation were resulting in the existing submersible pumps being lifted every week for cleaning and maintenance – with suction tankers often called in to remove effluent.
P&M Pumps brought its trailer-mounted pump set to site, and engineers tested it with items regularly causing blockages – such as gloves, towels and even fleece jackets.

As a result, two Vaughan SE4L 7.5kW submersible chopper pumps were adapted to fit straight down onto the existing guide rail mount system in the female wing wet well, to ensure an easy retrofit with minimal disruption.

Two more similar pumps are now due for installation into the male wing wet well.

Brian Tinham

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