Unclogging A Plumbing Vent
A malfunctioning in a drainage pipe and the affiliated sink may relate to the problems in the plumbing traps or the plumbing vents.
Check the drain pipe and the plumbing traps for possible clogging. If everything looks alright with the sink traps and the drain pipes then the problem may lie with the plumbing vent.
In order to prevent waste and sewage gases from entering into the home or building, plumbing vents work in association with the plumbing traps and the drainage pipes. Hence, a drain-waste-vent (DWV) forms a component of the plumbing system. These vents take the waste gases from the traps and push them out of the building.
Generally the vents are located at the roof in the form of a metal or a plastic pipe of 3-4 inches in diameter. It extends up to 2 feet above the roof surface and vents out all the gases from the drainage system.
To clean out all the debris and foreign materials from the vent, move to the vent site. Take an extension ladder and set it up inclined to the roof. Since you have to inspect the vent from the roof surface only hence it becomes mandatory to double check whether the roof surface is rigid enough to carry your weight. If your roof is a saturated one then standing on the roof may prove very risky. In such a case the examination could be performed by an expert who would possess necessary tools and techniques to reach out to the vent.
An additional roof ladder extending from the inclined ladder to the ridge of the vent may be used so as to place yourself in a comfortable position. This would also prevent you from standing on the wet and saturated roof.
Look into the vent with the help of a torch to explore any hidden clog down the vent. The clog would generally be in the form of leaves, debris, dust particles and other foreign materials. If the clog lies at a shallow depth then remove it with the help of bare hands only. If it is a moderate one then a long bamboo stick or a metal rod would do the job. If however the clog still looks unreachable then a hose-pipe may come to the rescue. Force down water from the pipe to unblock the vent.
If that doesn’t work either then the hose pipe can be inserted into the vent easing the path for the water flow.
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