Plumbing Flashcards
4 types of pipes
Cast iron, galvanized, copper, plastic
4 types of plastic pipes
PVC, CPVC, ABS, PEX
2 types of copper pipe
Rigid and drawn
3 copper thicknesses
M, L, K thin to thick
PEX must be supported
Every 32” horizontal and 10’ vertical
Components of drain waste vent system
Drain, waste, vent
Vent must be
Above the highest fixture
Toilet distances
12” from finished wall and 15” left and right to center flange
Scoring action
Forceful water flow
Vent size
At least 1/2 the size of drain served but no less than 1 1/4”
Toilet vent size
2” single, 3” for multiple
Maximum critical distance
Distance between drain and vent, dependent on size of pipe
Types of vents
True vent, revent, wet vent
Drain slope
1/4” per foot of slope for drains
2 types of stacks
Soil (toilets) and waste