Client called us out due to the water fountains drain backing up. Removed the front cover of the water fountain, and removed the plastic ptrap. There was some build up in the ptrap, but that was not the issue, as it was still clogging up. I grabbed my small Chain snake and drill, and put the snake into the drain line. We definitely cleared some sort of blockage from the line as we could feel the snake hitting it. After we ran the snake, I hooked up a water supply line and shot water down the drain for a few minutes, and the drain is now draining properly. Cleaned up our mess, and put everything back together. NO WARRANTY ON DRAIN CLEANING Charged card on file.