Question for Aircon Experts.

climate control systems usually run the foot level air a few degrees warmer than the face level vents. To do this they open the heater slightly, hence the leak from the heater core.

Maybe it is condensation???
As you cool air you also dry it out and the water from the air has to go somewhere so it collects on the condensor and then drains. Often this happens in "bucket loads" once you stop the motor.
Worst we had was a hire vehicle in Darwin (a LC) that the drain pipe had disconnected above the passenger foot well and the water was inches deep until we returned it to have it fixed.
Rusty

Hi

I had a aircon leak roughly 8 weeks ago and the fluid that started dripping on the floor was green…first thing I thought was it was radiator coolant there was also a hissing coming from the front. After a couple of min the hissing stopped and the fluid stopped dripping. I turned the car on to get a clue and I immediately felt the hot air blowing. Took it into a aircon repaired and he said it’s very common for the oil inside the compressor to leak out when there is a leak and that’s the green color

If system has just been regased possible that it has a leaking evaporator .If system has dye in it [fluro green in colour], it will mix with evaporator condensation and leak out of drain tube If you have it regased regularly this is more than not the problem