I do not know if this is the right group to post my question, if not please post where can I find help.
I have fitted a/c system to my '87 BMW from a wrecked car. It was filled with oil, UV die, and R-12. Few days later it does not blow cold. Looks like I have a leak somewhere, and my R-12 escaped.
I bought UV-lamp and goggles and it looks like my condenser has a leak, and also a low side valve. But a/c shop spilled some UV die around the engine bay and tried to rinse it off with water. So now I am not sure that what I see is a leak or it was just not rinsed away.
I tried to clean it by spraying it with warm water and liquid dishwashing detergent, and a bit later rinsing it off with a garden hose. I did nothing. So how do you rinse UV die off?