Air Pump

[scotsgringo]

hi all can any 1 tell me what air pump they thing is really quiet and pushes a lot of air i'm looking for something that will give me air movement in a 70cm deep tank and will use it for a brime shrimp hatcher ( it is not for filtration ) BUT IT HAS TO BE AS QUIET AS POSS
any ideas let me know im in u.k so unless ley sell your version from the u.s.a over here it won't be much help THXS ALL HOW REPLY

 

[BFG]

hi all can any 1 tell me what air pump they thing is really quiet and pushes a lot of air i'm looking for something that will give me air movement in a 70cm deep tank and will use it for a brime shrimp hatcher ( it is not for filtration ) BUT IT HAS TO BE AS QUIET AS POSS
any ideas let me know im in u.k so unless ley sell your version from the u.s.a over here it won't be much help THXS ALL HOW REPLY

A lot of people on here seem to swear by Rena air pumps, and I've noticed my Maidenhead Aquatics store in Wiltshire is now stocking them.

At the time I was looking, I bought an Interpet 'Airvolution' AV3 from a different store. Quite powerful, 2 outlets and can run in tanks up to 122cm deep. It is very noisy, and now only runs on a timer when I know I'm not going to be about. It's sat on carpet, hidden by the aquarium cabinet, and it's still very audible. So I guess that tells you one to avoid!! Maybe others may have different experiences, but I will not be buying another air pump of this design.

 

[babybell911]

Yeah I got a tetra tec quite as a mouse then if you turn it on full the bubble wall vibrates off the glass and the huge amounts of bubbles make a racket! It's adjustable though so i just turn it down to quite before bed.

 

[Chri$]

Just an observation. Even if the air pump is really quiet, the bubbles breaking the surface creates a lot of noise (specially if you're looking for a lot of air). So it kinda defeats the purpose of buying a quiet pump

True lol but it's even worse if you have a noisy pump as well.
I swear by rena air pumps - quiet and efficient. All the higher powered models have adjustable outlet's. If you go for the rena 400 you get twin adjustable outlets. The only down side is they can be on the pricey side but that depends on where you buy them.
Rena Air Pumps

 

[docbanzai]

I have two Rena 200 pumps, but have found them unreliable and become very noisy in a relatively short period of time (6 months.)

The frst one I bought is still working but I have noticed an increase in noise (and yes, I have replaced the tubing and airstone.) The second lasted a grand total of two weeks before packing up completely (and I'm still trying to get my money back, and that was twelve weeks ago!)

I also have an Interpet pump which, although NOT the quietest pump to start off with, has settled down and works reliably. I wasn't particularly enthusiastic about buying it, but it was recommended to me by my LFS and has actually turned out to be pretty good, or at least better than Rena. I admit that Rena pumps look good and have adjustable flow, but virtually any pump can be adjusted by means of an in-line valve.

In short; I don't recommend Rena pumps any more. They're expensive and give poor value for money.

Just my opinion

DB

--corrected for spelling--

 

[scotsgringo]

thxs for all the info folks will keep it in mind when buying pump cheers

 

[sub.42]

One thing to bare in mind when you talk of 'diaphram' pumps, and the noise they make, is this. Diaphram pumps, the design of which 95% of aquatic pumps are based on, are always noisier when allowed to run 'open ended'. By that I mean if you don't restrict the outlet a little, the diaphram is free to move at its maximum rate of knots. This is normally controlled by adding a valve to the outlet, to restrict the output.

likewise, if you do buy a twin outlet pump, and you only need one airline connected, make sure to buy a 'tee' piece to join both of the outlets together. This will reduce noise, and may also make the pump live a little longer.

If you don't have a valve to 'throttle' the output of the pump, then try moving the air stone or bubble-curtain a little further down into the gravel or sand. The additional depth will help to create more backpressure on the pump, and will make it less noisy.

I always found the old Interpet 'AP' range to be quiet. I still have two AP2's running my shed tank's UGF. Or maybe I think that they are quiet 'cos they're up the garden

sub.

 

[Callum]

i have a rena pump and its not quiet at all damm thing vibrates like hell and this is on the lower outputs if you turn it up to max the bubbles go so loud you cant hear yourself shout. Also mine vibrates so much it moves and hits the side of the tank which makes a real racket. I do not reccomend them i think the tetratec ones look good though.

 

[Fatty]

i have a rena pump and its not quiet at all damm thing vibrates like hell and this is on the lower outputs if you turn it up to max the bubbles go so loud you cant hear yourself shout. Also mine vibrates so much it moves and hits the side of the tank which makes a real racket. I do not reccomend them i think the tetratec ones look good though.

Yep they are a pain, I got fed up and bought a whole reel of airline and put the pump next door by the fridge, the airline fits well behind skirting board, but at least the only noise is now the bubbles in the tank!