08-05-2009, 05:04 PM
Join Date: Jun 2006
Location: indiana; 47802
iTrader Positive Rating: 100%
| | Re: Needle wheel pump
I remember seeing wasserpest's suggestion to put an AC30 powerhead ontop of a sponge, running CO2 into the impeller. That was around '06, and I remember seeing people melting holes in the impeller blades and also cutting them to increase fractioning not too long after that. I cant remember where I saw the OTP series needlewheels in action, maybe the youtube video
. But I got one ASAP and now I have 3 running. I use smaller powerheads on smaller tanks, some with modified impellers.
one thing I haven't tried yet is stainless mesh for chopping up the bubbles. How about you Orlando? I'm a bit worried about it becoming clogged with debris but maybe thats not an issue. I have a stock OTP-1000 that has run 24/7 for 1.5 years now and hasn't been cleaned yet. I don't prefilter the intake on it. So for a long term solution I think the needlewheel misting is pretty stable.