The Homemade Heat Pump Manifesto

[Xringer]

Originally Posted by AC_Hacker

Seth,

The problem is that the leak is really small, about 2% a day, so I'm afraid I'll need to use extreme methods.

Regards,

-AC_Hacker

It's common to use a plastic tube held up to the ear or a stethoscope with an open tube on the end to listen for hissing leaks.

Maybe a small microphone on a stick, plugged into a amplified headset would work too..

Or, maybe some FJC (FJC4910) Universal A/C Fluorescnet Leak Detection Dye - 1 oz.