Keep in mind I don't know shit about this really. But this week the HVAC guy said that 99% of leaks come from the inside coil. Almost always caused by the buildup of debris as most people do not replace their filters as regularly as they should. Other than that its hit or miss. Some units last 30 years others 7 and it just depends. But operator care is a huge factor and he said that most people with dying ACs dont take care of them very well. Keeping house temps too low and the filters being the major things.Cool. I didn’t know that. Does it just slowly make its way out of the seals because of the pressures and pumping?
The warranty on my unit was 10 years so I am out of luck here. But if its a minor leak I'll just keep replacing refrigerant as time goes on until I decide to pony up for a new unit. I am moving to a new house soon and will be renting this one out so that may not be the best option for me. We'll see.