Sodium Dichloroisocyanurate SDIC's granular form not only facilitates ease of application but also allows for its use in conjunction with other water treatment chemicals. Its interaction with coagulants like aluminium sulphate and aluminium chloride is a prime example of this. When used prior to coagulation, SDIC enhances the aggregation of impurities, aiding in their removal. Conversely, its post-coagulation application focuses on its primary role as a disinfectant, ensuring the eradication of microbial contaminants.