Plumber:
(1) Know and demonstrate how to cut and join metal or PVC pipes.
(2) Have knowledge and be able to demonstrate use of various tools used in plumbing.
(3) Demonstrate how to clean a choked drain pipe.
(4) Have knowledge of operation of a septic tank.
(5) Replace a tap washer and adjust a ball cock.
(6) Service a hand pump.
(7) Know what immediate steps to take in case of burst water pipe.