Posted 8/23/2021 06:34 (#9179643 - in reply to #9179538) Subject: RE: Need of House Air Conditioner advise
I would not use a stop leak or equivalent,
The way that stuff works it reacts with air and/or oxygen so when the time comes that you need the system open for service what happens?
There also is a higher rate of suspicious compressor failure rates after it has been added.