Sewer Smell From Roof Vent Pipe

The vent stack is the pipe that releases all the gases that build up in your septic tank.

Sewer smell from roof vent pipe.

One of the main jobs of vent pipes is to get rid of those nasty odors and gasses so if you smell something off it s time to check it out. When vents diminish a building s indoor air pressure. 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.

Because of this naturally occurring cycle the septic and sewer gases have a foul odor. These gases are a natural byproduct of the bacteria that break down the waste in either your septic system or sewer line. 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.

Similar to a drain trap vents allow sewer gas to leave your home through your roof rather than going elsewhere. Sewer gas is a byproduct of the breakdown of natural human waste. It comprises a mixture of gases including hydrogen sulfide ammonia and more. There may be a clog in the sewer line right where it meets the vent pipe.

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. Strong sewage smells are a telltale sign that your toilet vent pipe may be clogged. The hydrogen sulfide in sewer gas is what gives it. One easy fix that may work is to pour a quart of water down each of your drains.

Yes sewer gas problems can also be caused by plumbing vent pipes that are clogged. If there is a clog in the plumbing vent those sewer gasses can t escape properly. Those carbon filters you speak of work very well sometimes frost over can cause the carbon to not work effectively. 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. Unfortunately leaves and other fallen debris can get jammed inside and cause odors to be trapped around your house.