When it comes to a sewage smell in your home after rain, the most common culprits are cracked pipes and clogged drains. If you have trees in your yard, roots are a common cause of cracked or broken pipes. In addition, tree roots can also crack your septic tank.Dec 14, 2020,
Blocked Drain Field Sometimes, either because of freezing temperatures or because a solid has caused a blockage, the drain field can become clogged, and the liquid cannot escape from the main tank properly. When this happens, the tank can fill up and overflow, causing the sewage odor to come up through the ground.
As the wind blows over the house, the air currents that are supposed to carry the gases up and away can instead carry the sewer gas down into the yard. Extending the vent pipe can help diffuse the odors, carrying them away from the yard. Carbon filters can also be placed on the top of the vent to help control odor.Mar 25, 2021