The most common warning signs include slow-draining sinks, tubs, and toilets, gurgling sounds from drains, sewage odors around your property, or wet spots in your yard near the cesspool location. If you notice any of these symptoms, your cesspool likely needs immediate attention.You might also notice patches of unusually lush, green grass in your yard near the cesspool area. This happens when wastewater leaks out and acts like fertilizer, causing grass to grow faster and greener than the rest of your lawn.The most obvious sign is seeing or smelling raw sewage coming from drains or toilets. This indicates a serious backup that requires emergency service to prevent property damage and health hazards. Don’t wait – call immediately if you see actual sewage.