My 12 x 24 x 52 intex pool that we installed in July comes with one return port and two pump intake ports. I believe there is legislation that makes two pump intake ports mandatory. I installed an inexpensive Intex skimmer that clamps onto the top rail to one of the pump returns. For the skimmer to work efficiently, I had to use a plug of sorts in the other intake, per the directions that came with the skimmer. The plug comes with the new skimmer. The skimmer works swimmingly. My question is, if I decide to hard plumb the pool over the winter, do I have to plumb the second pump intake, which is currently blocked? Or can I just cap it off and run one pump return and one pump intake.