So how quiet are fluid trainers really?

I have one and live in an apt. It's kinda loud and I add to it by turning my music or the tv up really loud while I ride so I can hear it. The neighbors probably get pissed but they have yet to say anything.

Mine is REALLY loud for the first ~5 minutes until it warms up. I think this is dependent on the season though, my trainer is in the basement and it gets pretty cold down there. After that, though, it really isn't that bad. Although I don't live in an apartment, I wouldn't think it would be a problem for your neighbors, assuming you are riding it at a decent hour.

Mine makes enough noise that I have to turn the TV volume up a bit, and it gets louder with resistance, but I don't think someone would be able to hear it through apartment walls??  And I have a super cheap fluid trainer from Nashbar!

Thanks everyone.  I'm going to be sure to place it on a rug or something to reduce the volume downstairs.  Again, he's half deaf and is never in the room under where we are going to put the trainer.