Sewer Smell From Roof Vent Pipe

Because of this naturally occurring cycle the septic and sewer gases have a foul odor.

Sewer smell from roof vent pipe.

What you are experiencing is downdraft from the roof. 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. Unfortunately leaves and other fallen debris can get jammed inside and cause odors to be trapped around your house. 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. Similar to a drain trap vents allow sewer gas to leave your home through your roof rather than going elsewhere. Normally the gases are carried up and away from the system s stink pipe. Strong sewage smells are a telltale sign that your toilet vent pipe may be clogged.

If there is a clog in the plumbing vent those sewer gasses can t escape properly. Vent stacks are supposed to remove foul air to the outside it equalizes pressure so that the fixtures operate properly. When vents diminish a building s indoor air pressure. The vent stack is the pipe that releases all the gases that build up in your septic tank.

There may be a clog in the sewer line right where it meets the vent pipe. Tennis balls leaves and all sorts of other debris can clog plumbing vent pipes. It comprises a mixture of gases including hydrogen sulfide ammonia and more. One easy fix that may work is to pour a quart of water down each of your drains.

If your sewer vent is filled with debris your plumber may remove it using a special grabbing tool. Then the vent pipe may be re angled and a new cap may be put into place to keep debris from clogging it again. The hydrogen sulfide in sewer gas is what gives it. Sewer gas is a byproduct of the breakdown of natural human waste.

The stack should send these gases out around your roof so the smells don t affect you. Those carbon filters you speak of work very well sometimes frost over can cause the carbon to not work effectively.