A specialised de-foaming agent to be added to liquid recovery tanks on cleaning machines. Controls detergent foam from the product being used and counteracts foam from any previous detergent residues on the surface. Suitable for eliminating foaming problems in recovery tanks of carpet extraction/spray extraction machines and scrubber driers, allowing tanks to be used to their full capacity. Add approximately 30-60ml of Defoamer to a typically sized recovery tank. This dosage may be increased if there is likely to be severe foaming or if the tank is larger than average. Dilute and add Defoamer at minimum effective levels for all other applications.