I arrived for a silver member water problem. The homeowner showed me the outdoor drain line that terminates into the cement pad. This drain line had a hole drilled into the top of the drain line and this was overflowing onto the pad. I cleared the drain line out with nitrogen and water and found the water to drain down. I cannot see where the drain line terminated to and I don’t know what may have been stopping the system up. If this problem continues I recommend to remove that drain line and re run that drain line to where it is draining into the grass and not under the slab.