I am installing a lagoon style 20x40 gunite pool and have a good handle on most of what needs to be done thanks to this site. One question still remains. Is it bad to plug one of the ports in the bottom of the skimmer, having the other port plumbed back to the pump? I am having 2" pipe go back to the pump for 2 skimmers and one line for the drains. Each will have a separate valve and then all joined at the pad prior to the pump. On the return side I am having 5 returns each 1 1/2" with their own valves and own lines back to the pool. This way I can dial in the pressure on any return that I need to. This is all being driven by a Intelliflo VS pump. Any thoughts about the skimmer ports would be appreciated as I haven't found much on this topic.