Re: air pumps: which makes the least noise?

[W Hung <wjhung2@yahoo.com>]

Hmmm...the linear piston pumps look interesting if I
ever decide to get larger, but I'm only going to be
running about 6 tanks at with this air pump. 

I like the Renas, but they don't seem to put out very
much pressure for how they are rated. 

-Wes 


--- Erik Olson <erik@thekrib.com> wrote:
> This might be a bit of a digression, but why not. :)
> 
> Quietest pump per volume output: The Linear Piston
> pumps that you can buy
> from places like jehmco.com.  I'd say the one we
> have is about as quiet as
> EACH whisper pump we used to run --- and we'd run
> five or six of them!  
> We were just amazed at how much better the fishroom
> sounded after
> replacing them all with a single hulking unit.  The
> other cool part was
> that in the three or so years since we did this, we
> haven't had to deal
> with the constant stream of repairs and replacements
> to the flapper pumps.  
> Good riddance!  Power is awesome.  It's a
> compressor, so you can run them
> very deep and choose the flow.  And you can make a
> manifold out of PVC and
> plastic or metal stem valves so your house looks
> like a fish store.
> 
> It's not for everyone.  I'd say you need to really
> be running 5-10 tanks
> for it to make sense, and the $189 is a bit to shell
> out in advance
> (though as I say, over many years it starts to pay
> off in pump repairs and
> replacements), but folks spend more than that in
> livestock and CO2
> systems.  These pumps occupy an interesting niche in
> between the 1-2 tank 
> setups and the hundreds-of-tanks fishroom run off a
> loud regenerative 
> blower... kind of like the "modestly insane"
> fishroom.
> 
>   - Erik
> 
> On Tue, 16 Mar 2004, W Hung wrote:
> 
> > I'm looking at purchasing another air pump and
> want
> > one that's strong yet quiet.
> > 
> > Has anyone every owned the old supra series and
> the
> > newer tetratec deep water series. They look
> similar in
> > design. Which one is louder?
> > 
> > Also, if someone could compare noise levels of air
> > pumps that would be great. I currently own a Rena
> 50,
> > Rena 300, Tetratec AP50(loud) as well as the old
> > series Whisper 100. The quietest air pump I've
> ever
> > owned was a Penn Plax Silencer 50, but those are
> no
> > longer made. 
> > 
> > So here is my ranking for air pump noise. This is
> not
> > scientific: (the unacceptably loud level starts at
> the
> > Tetratec AP50)
> > 
> > Silent-------Good------Pretty
> Good-------Loud-----> 
> > PPlax Silencer
> >      Whisper 100
> >         Rena 50
> >                 Rena 300
> >                                   Tetra AP50
> >                                          
> Challenger  
> > 
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> 
> -- 
> Erik Olson
> erik at thekrib dot com
> 
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