Any help diagnosing my problem before I contact a pool company would be greatly appreciated. Here is the background issue on the problem I am having and what has been done so far. The pool was opened for the first time last year and had problems with the skimmer farthest from the pump. It would receive very minimal / no suction but if we plugged the skimmer closest to the pump the far skimmer would now receive a good suction. The pool company said it should be ok for the season and to ignore the problem but it bothers me and causes floating debris to build up. I tried putting a drain bladder into the pump to blow back out the skimmers and nothing seemed to come out as well as trying to blow from the skimmers back towards the pump. I noticed that the pump had air in the cover so after investigating I found that the o-ring on the union was bad and replaced that but the problem still exists. I also noticed today that the pump chamber was completely empty when I went to turn on the pump this morning so I had to grab a bucket and fill it to get it primed and running. Let me know if I can provide any additional information / pictures. Any help at all is appreciated!