What's everyone using for airstones/aeration?

I would like some input on what everyone is using for airstones or aeration of their hydro reservoirs?
I'm running airstones, but I'm debating if I should add a water pump just to circulate the water in the reservoir.

I run a swc system that i use a water pump that is fed air via an air pump, so it pumps both water and air.........

an age old question,,,,,,,

The damn airstones move. they breakdown and leave that crap all over the bottom. 6 inchers running 5 bucks a pop and twelve of em in each cooler.

It was getting way ridiculous so I had to rube golberg a couple of things.

First though, with 110 liters per minute pushing from the air pumps there is enough circulation in the coolers and no need for another heat source to screw
with the res temps.

I've done a side by side comparison and the new delivery system is proving itself. Best thing is no more replacing air stones and only one line going in instead of twelve lines.

Heres a look at what I'll let you see topside. We're gonna keep the internal parts a mystery for now,,,,,

Now thats funny, i moved away from the commercial type pump on your recommendation of the dual diaphragm pump, which i prefer, and now you are using the commercial.
I would love to see inside those tubs, maybe compare some notes, i have a swc system i think you might like, although it wouldn't work in the coolers, so you wouldn't actually use it, so i wouldn't mind telling you.....
No heat issues from the commercials though huh?
Are you still using the dual diaphragm pumps in flower?

No more duals. why run 4 pumps per cooler when one kicks arse? The cost of the 6 inch stones and 4 pumps drove me crazy. great results but not cost effective. Now with what's under the lid it's designed to last a lifetime. No more added expenses of replacing stones. But i just don't feel ready to share it yet.

Labs are big enough and ventilated to handle the heat from the pumps so it's a non issue.


bb57

6 inch air stones, $1 each ---> http://www.hydroponics.net/i/134861

I agree that adding a pump in a closed bucket is just adding an unnecessary heat source. I have great results with these simple air stones. I do not like the micropore, air disks, or flextubes.

Or get the KeepAlive 460gph aerator at $54, which is what I'm thinking of doing.
2 different models.
One can be suctioned with 3 suction cups on the base.
The other can be left to float at the surface with the bubbles pushing downward into the water.

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