P&M Pumps was contacted
in December 2011 by the
engineering services
company contracted to
maintain pumps, sewers and
pipe work systems at
Peterborough Prison.

Problems were occurring as a
result of blocked pumps.

The pumps were being
lifted every week for cleaning
and maintenance and, on
some occasions, suction
tankers had to be called in to
maintain the removal of
effluent. This amounted to
extra cost and disruption as
the pumps could be out-ofaction
for several days.

P&M Pumps demonstrated
its Vaughan Chopper pump.
Engineers brought items that
were causing existing pumps
to block, including gloves,
towels and fleece jackets.

The trial was a success and
two Vaughan SE4L 7.5kW
submersible chopper pumps
were purchased and adapted
to fit straight onto the guide
rail mount system in the
female wing wet well to
ensure minimal disruption.

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