One of twelve water treatment technology units, this student manual on hydraulics provides instructional materials for three competencies. (The twelve units are designed for a continuing education training course for public water supply operators.) The competencies focus on the following areas: head loss in pipes in series, function loss in distribution system piping, and converting pressure to feet of head. For each competency, student objectives, resources (information sheets and appendixed material), learning activities, and evaluation activities are provided. The appendices contain information sheets on hydraulics. Generally, an evaluation form with answer key is provided for each competency. (JH)