Air conditioner coils leak here

They sit in water all Summer. The metal rusts and cuts into the copper. The botom right corner is where the leaks are found most. You can't solder rust.Time for a new coil. Never put additives into the system to block the leak. You will damage the compressor. Aaac service heating and air in McDonough & a serviceman in Fayetteville Ga 4049574510