My wife and I are in the process of purchasing a new pool. I feel I have started doing the right thing going online and talking to pool builders trying to learn about pools and pool products. What's good, what's not. I feel like I'm more educated now than I was when we started this process. However, in certain ways I feel even more confused. I have one PB telling me grout under the liner is the way to go because the pool-crete is too soft and dents when your feet hit the bottom. Then I have another PB telling me grout crumbles and pool-crete is the way to go. One pool builder swears by an earth filter and another says cartridge filters only. One PB says salt is the way to go another PB says he wouldn't own a salt system if his life depended on it. So I'm a beginner and any help would be very much appreciated especially from someone who isn't trying to make a profit off of me as well as owned or dealt with the different types of items. Anything that you can think of that is important please share with me. Thank you in advance.