How to Repair Plumbing Vents

Plumbing vents will extend from the interior to the exterior and this exposes them to temperature variations. This usually happens during extreme cold or water flows through the pipes. As an immediate result, plumbing vents tend to contract and expand. A flexible gasket is best solution present to seal any vent but these are rarely installed. The presence of the vent system is needed in order to allow air to enter the system. Without it water would not be moving as you need ventilation for liquid to flow. Most plumbing vents are located above the roofline, at a distance of at least 6 inches.

If these plumbing vents do not function properly anymore you have two solutions. You either replace it all completely or you just create a new gasket. The most met problem with plumbing vents takes place in the spot where the pipe connects to the cone. This is where leaks usually appear and this is not a reason to worry. The amount of water that will go in is very small and if you did not have problems before there is a big probability the system will still work for years to come. To repair a plumbing vent that exhibits this type of leak, just use electrical tape on the pipe. Wrap it around several times while making sure you start an inch below the line of the cone and getting to the same distance above it. You could also create a new gasket out of EPDM if needed but this is an operation that is time consuming and you are better of with just replacing the entire plumbing vent instead of trying to repair the problem.

Another type of plumbing vent that you could find is the check vent. They are usually only mounted on sink drains and never on toilet drains. Sometimes these fixtures need to be repaired although the best solution is to replace them completely. If you smell sewer gas under your sink you need to look at the check vent and verify weather or not it closes properly. Another sign to look for is waste water under your sink. When you hear gurgling sound and/or you notice that water runs slow you might have a different problem. Remove the check vent and put on a pail under the pipe. Turn on the water and if the noises stop you have to replace the check vent. If not, you might have a clogged drain.

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