I am new to the forum and was hoping to get help with a vacuuming question. I am vacuuming to waste due to use of floc (I know from reading everything here that is not recommended but either way I have already done it). My system is setup with two skimmers and vacuum port. When vacuuming I was wondering if I use the vacuum port would closing or opening the skimmer line decrease suction power? Should I plug one of the skimmers to help reduce how much water I am losing while vacuuming?