Use 'NOVACUT' as a pre-treatment for particularly dirty carpets. Prior to cleaning certain areas of carpets, use of a chemical to soften up very heavy dirt, spillages, etc. is recommended. For example, restaurant carpets near kitchen entrances, office carpets near factory entrances, self-service areas of cafeterias, etc. 'NOVACUT' is simply sprayed onto these dirty spots or areas 2-3 minutes prior to cleaning with a hot water extraction machine.