My Anthony Pool has 2 skimmers and I had 1 replaced. My old skim,m,er had 1 pipe going out of skimmer to pump. The new skimmer is a Hayward 1072 or 1071 and it has 2 pipes at bottom of skimmer. If I look up hayward skimm,ers, it says the extra pipe is for equalizing; but I cannot see that the pipe is connected to anything. I have no intake or pipe at the inside of the concrete deck that could hook to the extra pipe. Is this extra pipe just capped off somehow?