What is a sign of potential problems in a drainage system related to venting?

Unpleasant sewer gas odors are a significant indicator of potential problems in a drainage system related to venting. A properly vented system allows sewer gases to escape outside of the building, preventing them from entering living spaces. If these gases are noticeable inside, it usually suggests that the venting system is not functioning correctly or that there may be blockages in the vent lines. This can lead to dangerous situations, as sewer gases can be harmful to health and indicate negative pressure within the drainage system.

Frequent leaks in pipes can be a symptom of many issues, including wear and tear or installation errors, but they do not directly relate to venting problems. Consistent water pressure is a normal occurrence and does not indicate venting issues in a drainage system. Clear drainage paths signify that the system is likely functioning correctly, as water should flow without obstruction when venting is effective.