As a follow up, turns out the AC drain hose was clogged (like the post after mine). Used the air compressor to shoot some air into the drain pipe and a good amount of water came gushing out. Was a bit of work to get to the drain pipe but I was able to snake a flexible hose down from the top and place it over the end. Pictures of where the drain pipe is located (from the top) and the hose I used.