Plumbing Flashcards
What does DWV stand for?
Drain waste vent
What is the minimum pressure house you can use?
Schedule 40 or 100 psi
How are tubing measured?
Outside
How are pipes and hoses measured?
Inside
What does NSF stand for?
National sanitation fountain
What does CSA stand for?
Canadian standards association
What is UL stand for?
Underwriters laboratory
And is IAPMO
International association of plumbing and mechanical officials
What is the most common city water connection?
3/4” swivel female hose connection
What is ASTVP
Anti-siphon trap vent device
What are PB fittings made of?
Polybutylene
What’s the minimum sized piping for a grey tank?
1 1/2”
Where must the waste tanks be?
22.5 feet from the back bumper and 18” from the outside of the unit
What’s the purpose of an accumulator?
The provide a cushion of air for the water system?
What pressure does a regulator bring it too?
40-50 psi
What colour are pet crimps?
Black
What is an example of a backflow preventer?
Check valve or vacuum breaker
What is the minimum wall thickness your can put a spin fitting in?
1/8”
How many RPMs should the router have for spin fittings
25,000 rpms
What’s the minimum sized fresh water hose you can use in an RV?
3/8 hose
What the minimum and max slope per foot of a drain
1/8” min 1/4” max
How far does a vent need to be above the trap arm?
6”
What’s the maximum height for a shower head?
6” above shower wall
Minimum drain size for sinks?
1 1/4”
Minimum pipe size for a dry drain?
1 1/4”
Minimum pipe size for a wet vent?
1 1/2”
What must all drains have?
P- traps
How much water should be in a P trap?
2-4”
Where must a P trap be from the trap arm?
25” min 36” max
Minimum sized sewer hose?
2 1/2”
Minimum sized P traps used?
1 1/4”
How far does a sewer vent need to be from the roof and from any intakes
2” from the roof and 36” from and intake
