A/C evaporator coil is dirty causing drip. U need a permit to buy coil cleaner. Over the counter substitute?

My central a/c coil was dripping condensation instead of rolling in to the drainage pan. I'm sure it's b/c the coil is dirty b/c I've watched A/C repairment spray the solution on it, rinse, and fixed the problem. Can I do this myself and what type of solution/mixture can I use. Thanks in advance.

A/C evaporator coil is dirty causing drip. U need a permit to buy coil cleaner. Over the counter substitute?
you can clean your evaporator with water and a wire brush carefully, then disinfect with a disinfectant, then use pleated filters and you will not have to do it again!
Reply:the proper way to clean a coil is to pull it out %26amp; clean it most times they are to thick for those no rinse coil cleaners besides the cleaner you have it the more money youll save on electricity
Reply:you can buy coil cleaner at the hardware store, you don't need a permit. you just spray it on and let it set according to the directions, then rinse with water and it will flow down the cond. drain. i use a little pump sprayer or garden sprayer.