Simply Koi and More Koi

i have been on the main site for cloverleaf and there is a adtec to the pss bay it seems to sit above the vortex has any one seen one got one and is there more to it do i need air in the bay and media it says on the site it will double the filter power of the filter i am always keen to inprove as thats all this years been about any advise on this or a mod some one has done like it some photos would be nice
cheers guys
and i know its close so happy christmas all lol