This course consists of very simple techniques and procedures to train the worker. this course consists of four lesson introductions, in which we discuss the introduction of and classification of water storage tanks, In lesson 2 we discuss materials and equipment which are using in water storage tank cleaning and disinfecting. lesson 3 focuses on techniques and procedures, how to clean and disinfect the water storage tank. lesson 4 safety which focuses on why safety is important how to manage safety procedure in water storage tanks cleaning and disinfecting. aim of this course to deliver right materials and aware the workers according to high health standard they work easy and perfectly. also this course design on a practical experience basis and techniques that's why it will be easily understandable for low education, beginners, intermediate and scratch level workers, or applicators. in this training course designing focus on the importance of cleaning and disinfecting we show and explain the disease which spread by untidy water with examples.. which important step the worker should know this fact if they know this fact they will be performing the operation with proper planning. WE explain material and equipment which are using water storage tanks cleaning and equipment this is the focus in our training to show them right and effective cleaning and disinfecting materails and also train them to how select? , how to use this material, and what is the difference between cleaning and disinfecting and materials.