I have a large pool with 2 skimmers a main drain and a side vacuum port. The barracuda is attached to the side port. Normally we have only the side vacuum port open completely and 1 skimmer barely open the main and second skimmer are completely closed. The catch basket at the pump in this configuration has some air towards the top but is circulating. Air bubbles come out of the side jets in this configuration. The gauge reads at 0 psi. If I switch to the main from the side port the pressure jumps to 10 and the air in the basket and out the side jets goes away. The vacuum basket is circulating cyclonically and there is some suction at the end but I am guessing just not enough to get it functioning properly. Any suggestions on how to fix it?