Sewer Smell From Roof Vent Pipe

There may be a clog in the sewer line right where it meets the vent pipe.

Sewer smell from roof vent pipe.

Similar to a drain trap vents allow sewer gas to leave your home through your roof rather than going elsewhere. If there is a clog in the plumbing vent those sewer gasses can t escape properly. One easy fix that may work is to pour a quart of water down each of your drains. Tennis balls leaves and all sorts of other debris can clog plumbing vent pipes.

The vent stack is the pipe that releases all the gases that build up in your septic tank. Normally the gases are carried up and away from the system s stink pipe. If that doesn t get rid of the odor it s time to call a professional. These gases are a natural byproduct of the bacteria that break down the waste in either your septic system or sewer line.

Those carbon filters you speak of work very well sometimes frost over can cause the carbon to not work effectively. Vent stacks are supposed to remove foul air to the outside it equalizes pressure so that the fixtures operate properly. This can happen in old homes where a cast iron vent pipe gets clogged by years of rust scale that falls off the inside of the pipe and clogs a 90 degree bend in the pipe. Because of this naturally occurring cycle the septic and sewer gases have a foul odor.

If your sewer vent is filled with debris your plumber may remove it using a special grabbing tool. What you are experiencing is downdraft from the roof. Yes sewer gas problems can also be caused by plumbing vent pipes that are clogged. The plumbing roof vent pipe and yard based sewer vent pipe are also a place where septic gases and sewer gases exit the system safely.

The stack should send these gases out around your roof so the smells don t affect you. When vents diminish a building s indoor air pressure. Unfortunately leaves and other fallen debris can get jammed inside and cause odors to be trapped around your house. Then the vent pipe may be re angled and a new cap may be put into place to keep debris from clogging it again.

It comprises a mixture of gases including hydrogen sulfide ammonia and more. Sewer gas is a byproduct of the breakdown of natural human waste.