My on-ground liner failed in very short order; see my other review for details. All the other pool companies I contacted either couldn't or wouldn't do the liner replacement, even if I was willing to pay for re-measuring etc. They were worried about liability. Purewater's owner Carolyn Bickerton agreed to take on the job, re-measured everything to ensure a good fit, worked with the liner company when required, and was on-site for all the key installations. She gave good advice and was very tolerant of my many questions; she seemed to understand that my first (bad) experience with another company had made me wary. I'm very satisfied with the job and wouldn't hesitate to hire them again.