Hi guys I'm currently replacing my pool skimmer. When I pulled out the skimmer I noticed that my pool drain is plumed to the pool skimmer. What purpose is the pool drain if it's not connected to the pad and instead directly to the skimmer? The skimmer will be pulling down water from one hole but the other hole that is plumed to the drain will not do anything. Can I just eliminate this pool drain? Any info from anybody would be greatly appreciated.