Well Harold, I'm reporting in as you asked on a previous post. If you recall I ordered a Quincy V325 5hp because you recommended it highly. I've had it for about a month now and like it very much. I can get air now without even having to turn it on.
It is louder than its replacement, but it is a different sound which isn't as annoying. Plus it doesn't run as long as the old one. I did get the air filter/silencer combo. It is located in my utility room, the sound of it easily carries into the living room. My better half says no complaints about it running. I may get one of the intake silencers later.
My previous one was a horizontal, put between the washer/drier and the opposite wall. The horizontal Quincy was too big to fit there. The vertical works out, but you have to jog around it to get to the washer/drier. Better half said that was ok. Turn out she kept hitting one of the pipes on the old one all these years & never mentioned it. I also have to redo all the shelving on the wall.
It sometimes leaks air (slowly, 10 lbs a day), sometimes it holds pretty good. I'm told the valves have to seat in.
Thanks for the recommendation, Wayne D.