Well...I have found a few things...Scott,
Any new learnings over the last 4 months of operation? How often are you changing the roller now?
1. It isn't really trapping all that much. I am still using 3 - 4" 200 micron socks and they fill up weekly.
2. I am still on my first roll. The floss is dirty...but clearly not catching nearly as much as my socks.
3. I have not been able to reliably get the floss to stay on the ideal path. It is still gathering more to one side or the other therefore the water is not passing through the floss.
4. The source roll floss is starting to stick to itself and the motor isn't strong enough to pull the fresh floss off the roll. I don't know if the dampness in the area is causing their floss to be sticky or. I haven't quite figured it out yet.
I have been in contact with Deltec to see what they recommend.
Keep in mind I feed a lot. Since my 3 socks are filling up weekly, that means there is a lot of stuff in the water column.