Liner changing time for your above ground pool is a perfect time to do some pool wall repair.
It is best to start by cutting the old liner out with a razor knife, leaving the pool completely assembled for now. Once the liner has been removed from the pool, closely examine the pool wall. Does it look anything like the one pictured below?
A wall that is maintained at every liner change will outlast the neglected ones by many years. So, is it time for some pool wall repair?
The metal for wall patches can be almost anything that is flat and thin. A cookie sheet can be cut with tin snips and used as a wall patch. I have even taken a beer can and modified it to work. Somewhere out there is a pool labeled Bud Light. It is also possible to buy aluminum flat stock flashing material from hardware stores or awning companies, or Amazon. This is the best material to use for above ground pool wall repair.
This flashing material is usually sold in either 12", 18", or 24" widths and can be cut to any length. This type of material is perfect for inserting into the bottom rail on the inside of the pool. A single piece can be run around the entire inside of the pool effectively reinforcing the cove area of your pool wall. This cove area can be prone to rust and the extra protection could greatly extend the life of your sidewall. Use plenty of duct tape to cover all exposed edges.
Spend a little time on wall maintenance and you will increase the life of your pool by many years.