PO number ADMIN3943. Overnight? 4No Specialist waste water engineers on site for up to 8 hours 2No specialist lifting frames Tanker to empty up to 4000g Extra high pressure jetter on site for up to an hour 2No Replacement bearings 1No Top sprocket 1No Bottom sprocket 1No Drive chain 2No greasomatics 2No grease to bearings adapters Following on from our recent site visit, our engineer has advised that further works are required on your sewage system.