Thanks bill.

There will be a port at the very top in the middle of the lid. You'll attach some airline tubing and a valve to this port. During the first few weeks, and especially if you have high nitrates right now, you'll need to check the reactor chamber for air at the very top of the lid every day. Just open the valve until you gassed all the air and then your all set.

How are you going to feed the reactor? The best way is to use an aqua lifter pump and a pre filter. If you want send me a message when you get ready to hook up the unit. Korralin directions have horrible English translations.