I have a partially inground pool, about 11,000 gal with a 10 yr old Zodiac system which seems to have packed it in. The cell is fairly new but I fear the power pack/control box may be shot. The Zodiacs have been discontinued so I'm looking at a Hayward acquatrol open box deal from a discount supplier. I would have to arrange the installation. Is it fairly straightforward? I'm showing a shot of my existing plumbing around the Zodiac cell. I believe it's the same diameter piping. I'm not sure about dimensions re fitting it in and wiring etc. I was hoping one tradesman could handle both the plumbing and electricals.