Hey guys have the Pentair Acid Dispenser. Stopped working, read the forums here and ordered the rebuild kit. Changed the siphon tube today - but still wont suction. I would like to replace the roller device that came with the rebuild kit - but for the life of me can't figure out how to get this thing removed. Took out the screws looked around, pryed a bit and I can't get it off. Can't find any screws to remove it. Anyone know how to remove this thing so I can replace it? *I Should add that the motor and everything is working - just wont come out.