Not all septic systems will have effluent filters on them. Effluent filters are designed to prevent solids from leaving the septic tank. This can greatly extend the life of the drain field. The filter fits into a tee baffle which should already be attached to the outlet pipe of your septic tank. Sometimes tee baffles will break or rust away and need to be replaced. Use of effluent filters will require maintenance cleaning. The filter should be cleaned every three to six months. To clean the filter, you will need to remove it from the tee baffle and hose it down, then install the filter back into the tee baffle. If you prefer, we can do the maintenance cleaning of the effluent filter on a regular schedule for a moderate cost.