Ace Pelizon Plumbing was called out on a clogged pool discharge drain. Ace Pelizon Plumbing found drain located in corner of pool equipment area and will be difficult to cable. Clean out approximately 8 ft away. This is a best attempt effort based on an unknown system and difficult access. If unable to clear with cable, tow behind hydro jetted may be required. Informed customer of this possibility before starting work. Ace Pelizon Plumbing will attempt to cable and clear pool discharge drain from opening or clean out if it connects to discharge line. Removed crescent wrench from trap of pool discharge line. Cabled drain with 3/8 inch cable and flushed with water from hose, line drained. Attempted discharge from pool and found line began to back up from heavy volume. Waste came up from back clean out. Cabled sewer from back clean out with 11/16 cable and line did not begin to drain until cable was pulled back. Line is approximately 140 ft. Spoke with customer about hydro jetti