Jack, you'll have to come and help me if you can. Not sure how I would even check the pressure.

I do know this, If I touch the very end of the coil, its cold. I had to make sure it was level in the sump to try and distribute whatever freon is in the coil as equally as possible to try and get more contact with the water. Before I did that, the coil would only get cold at the end, and the rest of the coil would be the same temp as the water.