Vocabulary – the words we use are important. Understandingand knowing some basic plumbing terminology can be helpfulwhen you have an emergency. Last month we discussed theproper fall or slope needed on a drainage system.Expanding on that knowledge, this graphic explainsthe basics of a drainagewaste and vent (DWV)system. Here we cansee that although it'sall "drain" lines, thepurpose and thereforethe name changesdepending on itslocation within a wasteand vent system.
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