Since I started buying accessories for my compressor I have been noticing that many leak. The last two were an air filter and a new hose. The filter leaks just below the housing. The hose leaks at both ends at the connectors. I should stress these are not leaks produced by myself through adding connector hardware (all that is done with generous use of Teflon tape - no leaks there!).
Admittedly the leaks are very small and detectable only with soapy water. E.g. the two hose leaks did not drop the pressure in the 4 gallon tank significantly over 3 hours.
I cannot imagine that leaks of that magnitude in a compressed air system matter all that much (Propane, different story...:-). I am however puzzled as to how common these occurrences are and how acceptable they are considered by others. Are there differences in manufacturers?