Wondering what a branch vent is, or why a plumber would need something called a hubless? Plumbing systems are complex, and as a result, there are a lot of terms used in the plumbing industry that aren't well known by laypeople. This helpful glossary lists some of the most important plumbing-related terms, along with definitions from your Calgary plumber at Mr. Rooter Plumbing of Calgary, so you will be able to follow the process easily next time you need maintenance, repair or installation work done on your plumbing system.