David:
Just remember one thing about most bead filters, they’re modified swimming pool filter and/or are designed around them…
Do you know the Juice commercial "I could of had a V-8", well you could have had an Aquabead which would have eliminated the O2 problem…
No matter here’s the conversion….
If you look at an ad for the Aquabead filter, focus on the Multiport Valve…On the front you see the pressure gauge, just below that is a 2" port which has been reduced to a ½" female treaded port…Gary has attached what he calls an "ALISS’’ Life Support System… An ingenious idea, fabricated with off the shelf plumbing fixtures, (90 degree curb fitting elbow , a ½" check valve and a ½" threaded pipe fitting to go from PVC to flex hosing) Just hook an air pump to ALISS and you're home free...
Aquabead uses a PentAir Multiport Valve which has the 2" port… If the advantage has the same valve you can make the conversion... If the Advantage valve housing does not have the 2" port... You might be able to remove the pressure gauge and add the ALISS to the port during medication...
When you’ve completed this, send Gary Cryer a bottle of Black Label for using his idea…
A better, but more expensive, alternative would be to install a TT or Bakki Shower as your Bio Filter and use the bead filter as your mechanical filter…then you won’t have to worry about medication problems…
And remember, when you build your next pond…and you will build another and BIGGER pond, buy an Aquabead…
Hope this helps, Aloha! Mike