perrycat
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I'm "studying" for taking the journeyman's test, and this book with these practice questions has some about definitions....here's the question:
A plumbing system that is designed with the waste piping embodying the horizontal wet venting of one or more sinks or floor drains by means of a common waste and vent pipe that is adequately sized to provide free movement of air above the flow line of the drain is known as:
a. a combination waste and vent system
b. an engineered system
c. an illegal system
.....now, I figure the answer is "A", but really, reading this, I can't see the difference of what they're talking about and just what I understand to be called a "wet loop" like in high rise construction apartment buildings.
Can anybody give me a short version example or know of an online diagram of a combination waste and vent system that I can look at to try to understand what it is?
A plumbing system that is designed with the waste piping embodying the horizontal wet venting of one or more sinks or floor drains by means of a common waste and vent pipe that is adequately sized to provide free movement of air above the flow line of the drain is known as:
a. a combination waste and vent system
b. an engineered system
c. an illegal system
.....now, I figure the answer is "A", but really, reading this, I can't see the difference of what they're talking about and just what I understand to be called a "wet loop" like in high rise construction apartment buildings.
Can anybody give me a short version example or know of an online diagram of a combination waste and vent system that I can look at to try to understand what it is?