I have a problem with the ceiling fans in my home. We have 5 ceiling fans...all of good quality (not $59 specials)...a couple we've even brought from previous homes. A few of the fans "hum"...it's that same kind of sound you'd get by hooking up an electric motor (i.e...a ceiling fan) to the wrong kind of dimmer switch...i.e...as when the wrong kind of dimmer switch is turned "down", the motor will hum louder and louder. But here's the strange part: The noise gets worse in an orderly fashion as the fans are positioned from one end of the house to the other. Two fans at one end of the house (as it happens, the farthest from the circuit breaker panel, if that even matters), are QUIET...no humming. As the fans move "across" the house, the next fan hums a little....the next fan a little more (quite noticeable), and the 5th fam hums a LOT (this is the fan all the way across the house from the completely quiet fans)...all the fans either have no wall switch, or are hooked up to a high quality ceiling fan switch. I guess I have the fans hooked up to two or three different circuits coming from the circuit breaker panel. I've suspected some weird phasing problem, or some other problem with the electrical system in the house (built 1987), as opposed to problems with the fans themselves. I guess I could take, say, the loudest humming fan, and move it all the way across the house and hook it up to see if it still hums, thereby proving that it's not the actual fans themselves but something to do with the wiring that's causing the humming, but, well, I thought I'd ask you guys first . Thanks for your time.

I have a compressor with a 1/8-28 NPT fitting and I need to find a way to convert it to fit into a standard fitting such as a 1/8-27 NPT or a 1/4" NPT. Any idea who sells one of these? Thanks Mike