Charlie D. wrote:
I was under the impression that coil cleaner is a caustic based cleaner. I know several AC guys who stopped using it because any residual will eat away the aluminum. Takes a lot of water to remove all of it. The no use Dawn in a soapy mixture to spray and let it sit before rinsing.
If it's the PINK stuff will cause problems if not rinsed away. Why I switched from the acid to the " brown root beer alkaline " a long time ago.
To the OP, you said you were going to clean the evaporator. Do not use the outdoor cleaner on the evaporator . Get the green indoor.