We are getting ready to sign contract for our inground pool. Before I sign the contract with all the specs. I am open for suggestions on regrets made by previous pool owners. What would you have done different? Or what is something you absolutely love about your pool. Also, our pool guy is suggesting a sand filter, but I have heard that a DE filter would be better. Our pool size is 14x26 rectangle with the deepest end being 6ft. We no absolutely nothing about inground pools so any and all suggestions would be greatly appreciated!!!!!