14 April 1995

Dirty water systems stay buoyant

SALES of mobile and fixed equipment for the handling of dirty water and slurry are still buoyant, according to Chris Pett, of John Pett Irrigation.

Many manufacturers had feared the Chancellor of the Exchequers decision to remove capital grants for pollution control in 1994 would reduce demand. Those fears appear to have been unfounded, says Mr Pett.

"Our sales have been up 25% for each of the past two years, and interest is still rising; the two very wet winters have obviously had an effect. Also, 50% of our current business is coming from farmers upgrading the capacity of existing dirty water systems first installed in the 1980s."

Boosting these low-volume systems ability to cope with thicker slurries has been of particular interest, says Mr Pett.

The Lincs-based firm has developed a shaft-driven propeller mixer which allows conventional low-volume systems – pump, 1-2in pipe and mobile irrigator – to cope with thicker materials.

Mounted on the rim of the slurry tower, the mixers 3kW electric motor powers the propeller blades via a drive tube. The blades are fitted directly above the irrigator pumps suction inlet, so that no material can enter the system until chopped to an acceptable size.

John Pett Irrigations chopper/mixer enables low volume irrigation systems to cope with thicker slurries. Price is £2500.