![]() ![]() If you are experiencing heavy rainfall in your area, it is best to be on the lookout for any tale-tell signs of a flooding drain field. As a consequence, the wastewater will back up in the tank and overflow in the leachfield. ![]() If the leach field gets saturated, the partially treated water from the septic tank doesn’t go through the final treatment process in the drain field. As the water passes through the gravel in the leach field, pathogens are removed by aerobic bacteria before the water goes back into the groundwater. When the effluent leaves the tank and drains into the leach field, the partially treated water percolates through the gravel and into the sand via perforated pipes in the drain field. ![]() In a conventional system, the septic tank holds wastewater for 2-3 days as the anaerobic bacteria treat it. This will make the septic waste to start backing up in the house and to overflow on the lawn. As rainwater floods over your drain field, the effluent from the septic tank will have no place to drain because the ground under the drain field is already saturated with water. If you have a conventional septic system, heavy rainfall that comes with floods can make the system to stop working. What happens to your septic system during heavy rain? ![]()
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