The disinfection process should include the following phases:
Cleaning and washing
Cleaning and washing of surfaces and equipment should always precede the application of disinfectants. It is necessary to remove solid waste, organic matter (including biofouling) and chemical residues as these may reduce the efficacy of disinfectants. The detergent used should be compatible with the disinfectant and the surface being treated. After cleaning procedures, any excess water should be drained before application of disinfectants.