You want the biggest pool your budget will buy.
Dollar for dollar, this is more swimming area than any other construction type will give you.
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It depends far more on water chemistry and sun than on the liner itself. Balanced water and a cover when the pool is not in use will get you years longer than neglected chemistry will. We will tell you honestly what yours looks like at every service visit rather than waiting for it to fail.
We drain, remove the old liner, inspect the walls and floor for anything that needs correcting while it is open, and fit the new one. It is a short job compared to a resurfacing, and the pool looks new when it is done. We replace liners on pools we did not build. See renovations.
It can be punctured, usually by something sharp dropped into it or dragged across it, and pets are another common cause. Small punctures are patchable underwater, and we do that repair regularly. It is worth knowing that a tear is a repair, not a replacement, most of the time.
No. It is cheaper because the wall system does the structural work instead of a sprayed concrete shell, which removes weeks of labor and material from the build. A properly installed vinyl liner pool with a steel or polymer wall is a permanent structure. The liner over it is the consumable part.
Often yes, and vinyl liner is one of the easier construction types to get real depth from. It depends on the diving envelope, the shape, and your local code and insurance situation. We will design to the standard if a board matters to you, and it is much easier to plan for at the start than to add later.