If the pool service technician installed quality materials, used proper methods of installation and maintained the correct chemical levels, then the pool surface should last for at least the following:
You could be missing out on hours of swimming time if your pool doesn't have a heater. A pool heater will keep the water warm even in the coldest weather.
If you use chemical treatments or a sandblaster, you’ll have to clean the pool again. Dispose of the stripped materials using a wet/dry vacuum.