Plumbing Unit

Purpose: Transporting liquids safely from one point to another for storage, processing, and direct use Carries fresh water from a source like a well to a fixture. A drain waste vent carries waste water away to septic tank.

Terminology Pipe: round/hollow RIGID material Tubing: round/hollow FLEXIBLE material Fitting: connecting device – Joins two piece of pipe – Connects a piece of pipe to a fixture, pump

Pipe Size Pipe size is represented by the inside diameter Pipe wall thickness (grade) is represented by a ‘schedule #’ - greater number represent greater strength - Ex:

Plastic Pipe PVC – (polyvinyl chloride) used mainly for cold water supply, drain waste vents, or irrigation lines What you’ll use in this class!

Pipe Fittings Elbow fitting: changes angle/direction of pipe Tee fitting: allow for branched lines

Pipe Fittings Male/Female Adapters: used to change the end of a non- threaded pipe

Pipe Fittings Reducer: used to change diameter of pipe Plug: close an opening that is re- opened regularly Cap: closes end of dead end pipe

PVC Pipe Tools Hacksaw: used to cut pipe to length. – Teeth should be pointing forward – Cut forward, slight downward angle

PVC Pipe Tools Pipe Cutter: used to cut pipe to length. – Ratchet cutting – Only use on PVC to keep blade true

Primer Purposes: – clean surface of the pipe – purple color - easily seen by inspector – Prepares pipe surface for bonding with glue = water tight seal

Glue Provides sturdy/water tight seal when combined with dried primer Dries and sets fast!

Step 1: Primer pipe and fittings

Step 2: After primer dries, apply glue to pipe and fittings

Step 3: Quickly connect pipe to fittings. Seat all the way into fitting!

Things to avoid: Forgetting primer Dripping primer down pipe (excess primer) Excess glue NOT seating pipe all the way into socket before glue dries

Used in water supply and waste drainage vent systems Thin walled – used for home plumbing – Color Coded Red What you’ll use in this class! Copper Pipe

Easy to work with, but more expensive than PVC Solder joints together instead of gluing

Copper Pipe Tools Tubing Cutter: – Used to cut pipe to length – Even/straight cuts & reaming tool – Tighten a bit at a time, rotating around pipe

Copper Pipe Tools Copper Fitting Brush: – Used to clean inside diameter of fittings