Quote Originally Posted by mmayhemm
How's it goin? I was about to order the General Hydroponics Dual Diaphragm pump, but now I'm wondering if I should get this one instead. Anybody have any experience/advice for both?
I've got experience with the Pond Master. It is quite simply the best air pump I've ever owned. Very quiet and very powerful.
http://boards.cannabis.com/hydroponi...bles-once.html

I'm not sure how long they last since mines only been running 24/7 for the past 3 months or so, but so far so good.
Opie Yutts Reviewed by Opie Yutts on . Best Air Pump (AP-40) Thanks Opie Just got my pondmaster ap-40 air pump and man is it quiet and puts out some serious air. I run a 6 bucket DWC that I had a mid grade air pump ($50 bucks of ebay, you can see the old one in teh pics) but it was really loud and the air pressure sucked when I had (4) 4" and (2) 5" round stones. Now that I have hooked up the ap-40 the a pressure is great and I even added (3) 4" stones for the res and I have plugged 5 ports of the 12. This pump is whisper quite, my total noise dropped 50% from my Rating: 5