1No PDR Roller kit, 1No Waste water Engineer on site for up to 30 minutes. Site address: Knightley Farm, Callingwood, Needwood, Burton-on-Trent, DE13 9PU Further to our Engineers recent site visit please see the quotation below for the required return trip to replace the PDR Rollers within the treatment system. Please note the Engineer has also recommended that the system is emptied, this quotation does not include the tank empty. If you would like a price to include this please do let me know.