Hm. Watery? You might want to balance the soluble fiber (psyllium husk) with insoluble fiber like flaxseeds. Your fiber dose should consist mostly of soluble fiber, but i don't think it should be so much where your stools are loose.
For parasite cleanses you'll need to take herbs such as cloves, Wormwood , and black hull tincture.
Try drinking kombucha tea and unpasteurized noni juice for added results.