Hi all, we're finally pulling the trigger on an inground pool this summer, and doing LOTS of research. So far, we're looking at a vinyl liner pool, 18'x36' rectangle. On the fence about depth either 3'-8' or 4'-8'. We've also eliminated using a mineral system like Pool Frog, and will stick with Chlorine. I've read about the BBB method on here, and still trying to learn. We'll go with a cartridge filter, looking at the Hayward C4030 at 425 sq ft. Also, looking to go with a Hayward TriStar VS 1.85 HP pump and a Hayward HeatPro heat pump. We're going to have a slide, etc. We have dogs and definitely want them to swim, so will be just using regular steps, no vinyl wrap. Looking forward to learning as much as I can, and passing that on here.