I have one of these on my pools and this year I'm going to hard plumb my system. I see that Aqualuminator has a "hard plumbing adapter" but I cant seem to find out what exactly it is. I called Pentair(who makes them now) and they were of no help. Any one with one of these lights able to help me out? I'm having trouble figuring out how to attach a 2" pipe to this.