50-427-751Sanitary Drains 1
Course Information
Description
Plumbing related instruction of sanitary drain systems. Course includes a review of codes and trade practices related to sanitary drains, drainage systems, components and applications.
Total Credits
2
Course Competencies
  1. Size gravity flow drain piping: horizontal pipe, vertical drain pipe, and vertical drain stacks of 3 branch intervals or less
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Drainage fixture unit (dfu) value of fixtures are determined from COMM 82.30 (3)
    Horizontal drain pipe, vertical drain pipe and vertical drain stacks of 3 branch intervals or less are determined by COMM 82.11 and 82.30-2
    Dfu value of fixtures determines the load for sizing of drain pipe as specified by COMM 82.30-2
    Minimum pipe size meets specification of COMM 82.30 and 82.32

  2. Size vertical drain stacks of more than 3 branch intervals
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Drain stack of more than 3 branch intervals is determined according to 82.11
    Drain stack is sized according to COMM 82.30-2

  3. Size gravity flow building drain, building sewer and private interceptor main sewer
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    learner differentiates between building drain, building sewer and private interceptor main sewer according to COMM 82.11
    Drainage fixture unit (dfu) load is determined from COMM 82.30 (3)
    Building drain, building sewer and private interceptor main sewer are sized according to COMM 82.30-3

  4. Design and develop installation requirements
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Installation procedures, bedding requirements, and location limitations of drain pipe meets specifications of COMM 82.30 (11)
    Differentiates between horizontal piping, building drain and building subdrain using COMM 82.30 (4)
    Drainage fittings are chosen according to 82.30 (8)
    Horizontal branch connections located downstream from the base of a drain stack meets specifications of COMM 82.30 (7)
    Horizontal branch connection located in the horizontal offset of vertical drain piping meets specifications of COMM 82.30 (6)

  5. Design sanitary sump systems
    Assessment Strategies
    With the aid of the Wisconsin plumbing code book, information sheets, reference materials and drawing tools
    Through a written test
    Through the construction of a drawing
    Criteria
    Gallon per minute (gpm) discharge is determined using manufacturers specifications
    Conversion of gpm to dfu's is calculated according to COMM 82.30 (3) (b)
    Building subdrain and vents are sized according to COMM 82.30 and COMM 82.31
    Sump capacities meet specifications of COMM 82.30 (10)
    Velocities are established according to COMM 82.30 (4)
    Sanitary sump vent is sized according to COMM 82.31 (14) (i)