Filter Confusion.

Hi folks, my name is Alan, but prefer to be known as Snoops. I'm 66 years young and although I live in North Wales, I am a proud Scot. I am a newbie to the group but not to keeping fish. Twenty years ago I kept a variety of central american cichlids in a 72x24x30in tank. Back then I was fully fit but am now disabled due to a serious m/c accident. Because of my restricted mobility, I have bought a second hand Aquastyle 620 and I am somewhat confused by its filtration system.
Looking down on the system, it seems that the spray bar only feeds onto the first and larger of the two filtration areas. I managed to find a video on YT which showed this. It explained that the water then flowed under the plastic partition into the second area and from there over a lip and back into the tank. My confusion lies in the fact that after flowing under the central partition, it would seem that it then has to flow in a reverse route through the different media before returning to the tank. Also, as the lip over which it flows before returning to the tank is lower than the carbon/floss cartridge, does it only pass through the ceramic noodles, and black carbon mesh before going over the lip??
Sorry about the description, but it's the easiest way for me to describe the issue.

Hi there, and welcome to the forum. 

I'm not familiar with those tanks, I think I might have to spend some time later today having a look for them.

What are your plans for the tank?

Hi there, and welcome to the forum. 

I'm not familiar with those tanks, I think I might have to spend some time later today having a look for them.

What are your plans for the tank?

Hi there, I only intend to set up a small community tank, so perhaps some neons, danios, corydoras, pencilfish, zebra danio, cherry barbs.
Here is the title of a YT video which will show you the lid filter set-up.

You're welcome to provide links but I've watched the video now and completely agree that the floss in the second chamber is having limited impact on the filtration process. I hadn't envisaged it horizontally as it is... I would get rid!!

Thanks Matt, I did copy/paste the YT video web address but I got a pop-up telling me I couldn't attach a link to an outside site. Maybe that was my error, trying to attach it as an attachment.
Regardless of that, yes I think I will dispose of the floss.