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Member Paul Mesiti recently educated the CRESN group about how a P-trap works.
A P-trap is a plumbing fixture that has several purposes. It traps debris that has drained from the sink and prevents it from forming a clog deep within the plumbing system, and to stops sewer gases from passing into the home. It is this back flow prevention that prevents sewer gas from escaping into the house. Sewer gas can contain many noxious odors which at the least, may smell like rotten eggs and at their worst, can be explosive and poisonous. The traps installed in the plumbing lines help to form a barrier of water within the P-trap. At the bottom of the “P” is a small cleanout tap that can be used to remove clogs the P-trap has contained.