Im in the middle of making a standpipe (slip on style) I have two hole drilled in my overflow box. one is 1.5in and the other is 2.5inch i also have a 1.5 hole drilled on the top part of the brace. So can i make the Standpipe bigger and return the water from a smaller size line? Like make the standpipe 2inch going into the 2.5 hole and then pumping back out? This will give me more volume to my sump right? Instead of the 1.5 hole?