When I look down into both skimmers with the baskets removed I see air bubbles coming out of the pipe that connects to the bottom of both skimmers. I read through pool school dealing with leaks and tried a few of the tips and I cannot locate the air leak. It is just a small amount of bubbles and they just rise to the top of the skimmer and dissolve. It is not causing any problems, but I would like to know where the leak is. I think the leak is above ground (around the pump and valves) but I can't seem to find it. I turned off the drain valve and I still have the leak. Since both skimmers are leaking air bubbles the same way I'm thinking there is a leak at the pump and the air is going against the current and out at the skimmer. The order of plumbing is pump, shallow skimmer, deep skimmer, pool floor drains, and then out to skimmers.
I already tried lubing the pump lid and pump drain plugs.