We are remodeling our pool and are going to add a tanning ledge and beach entrance. We have 2 return lines that are too low because the added ledge will bury them. I was of course going to relocate them higher up and possibly split them so they will be bubblers in the ledge. My question is can the return lines be up in that 6" wall section above the ledge or should I just only reroute them as bubblers?