The backwash water can be routed to one of several locations. If an exterior downspout or drain line is available this is usually the first choice for the discharge water, or depending on the lay of land around your home sometimes we can discharge directly on the ground. However when discharging the water outside is not an option we can also route the backwash water to septic tank or sewer line with no concerns in most cases. As an alternative some people choose to catch the backwash water and store it for use in irrigation or watering livestock. We can also always find a solution that works for your location.