Bio Pellet Help

I have BioPellets in my 150 Phosban reactor and GFO in my other 150 Phosban reactor both plumbed together with Maxijet 1200 has worked great the last 5 weeks plus changed GFO 1 time (last week) but bio pellets are clumping together now. I rinsed them with RO water the other day and they looked like there was melted/stringy stuff I got that off them put them back in and 2 days later same thing clumping together. They are tumbling pretty good. I have valve all the way open on BioPellets but I am not using the foam pad on bottom of phosban reactor. Looks like maybe pellets are getting smaller and getting under the red plastic divider. Thanks any help would be appreciated. Jason /DesktopModules/ActiveForums/themes/_default/emoticons/smile.gif