DaveG
Airbush Analyst
I doubt that is your problem...… I suspect its more your compressor that has reached its 'end of life.'
Your compressor isn't strong enough to pull the paint up from the bottle, the diaphragm in it may have deteriorated to a point that it is now failing or has a tiny hole in it from being overworked
Hey @DaveG.... what is the lifespan of a Badger 150-4
Well, I have several 100 variations that use the same head (body, air valve, as well as trigger) as the 150 - that are from the mid 60's that work like new. I also have many Thayer Chandler Model A's that are basically where the Badger brush began life, that date back to as early as the 1920's that work as good as anything. So, I would guess they live for a good long time...
I suggested a simple test earlier on in this thread to determine whether the compressor passes muster, but it went unheeded, so... Hope he winds up with something that works for him.