Skipping regular maintenance allows solid waste to build up, which can clog drainage areas and eventually cause the system to back up. This can lead to surface contamination, persistent sewage odors, and, over time, complete system failure that may require full replacement. In New York, failing to keep up with required maintenance or documentation can result in fines from local health departments. These violations may also become part of your property record, which can create complications during future sales or refinancing. Beyond the financial impact, neglected cesspools can pose health risks through potential groundwater contamination and exposure to untreated waste. Staying on a regular maintenance schedule helps prevent these issues, protects your property, and keeps your system operating safely and efficiently over the long term.