This Manual is intended for use by the beneficiaries of DEWATS, in particular caretakers and operators. Each operational task is addressed in terms of where and when it will occur, how the task should be performed and why it is needed. Simple information about DEWATS modules and how they function is outlined in the Appendix 1.0. For further information which may be beyond the scope of this Manual, one may directly contact Consortium for DEWATS Dissemination (CDD) Society.