How many Pumps do you have running your Reef Tank

The bubbles from a spray injection system are created by water being sprayed at a high velocity down through a layer of air breaking the water line in the skimmer, instead of some sort of airstone being used underwater to create the bubbles that bubble up into the skimmer.
Sorry Not the best Diagram
It sounds like luna is getting the air going to the skimmer from outside the house, but I don't believe this is a requirement.
Cat4Wisson

 

Yes, outside the house and no, its not required. My house's Co2 level is rather high, which doesnt help with my ph. So anytime that I can get more O2 inside my house, the better. Luna

 

If you look at the pic carefully, you'll see that the skimmer has 3 fittings on the top of the blk box. One is for the pump(water supply), the other is the John Quest fitting and the last one is the air valve( has a lite blue knob).

Luna

 

I have 6 pumps on my 90g

In the tank, 1 koralia 3, and one seio prop pump 320,
The return is a quiet one 3000, which tees off to feed the skimmer as well. The skimmer is run by a genX 2400 since it is a recirc skimmer.

The Geo calcium reactor has a small eheim on it, and the CA reactor is fed by a maxijet 900.

I used to have a mag 9 return pump, but I cut 50 watts off the pump usage by going with the quiet one. Even with the new Ca reactor, I saved several watts by ditching the mag9 that failed on me.

 

1 for return...1 for uv sterilizer...1 for skimmer...2 koralia #3's & gonna add another #3

 

3 Powerheads in the tank, one return in the sump.

Far as I seen, those ocean motion setups are the best thing you can do.

 

1 return, 1 skimmer, 1 reactor....

 

4 total

1 Return
1 Skimmer
2 EcoTech Marine MP40W's for movement

 

aren't you guys describing a becket system skimmer that uses a becket injector or something totally different?
"Bite the Bullet" - The Evolution of the Precision Marine Bullet 2 Skimmer by Frank Marini - Reefkeeping.com

 

It does look very similar, good article.