Definition of reconnaissance. : a preliminary survey to gain information; especially : an exploratory military survey of enemy territory.
While this will generally be more expensive than any other type of repair, it will give new life to your pool, and new liners have an average life of 10 to 15 years. Expect to pay between $3,000 and $5,000 to replace an in-ground swimming pool vinyl liner, but just $300 to replace the liner in an above-ground pool.
Okay, enough introduction! Based on the process outlined above, we determined that the average cost for an inground swimming pool is about $19,000 for one with a fiberglass lining, and about $31,000 for a concrete or Gunite pool.