My liner sprung a leak in late May. After removing the liner I decided to do some reconstruction. My terrace had some collapsing and the perimeter pavers had shifted, due to high amounts of rain, snow and extreme temps. To prevent this from happening again, the walls going from the terrace to the bottom will be supported by a ring of mortar. A layer of mortar will go on the terrace, followed by a layer of pavers and then 40 lb cement blocks. When the liner goes on it will be held in place by perimeter pavers.