AODD Pumps | Double Diahragm Pumps. Metex Corporation Limited is a leading manufacturer's representative and distributor of AODD Pumps (Air Operated Double Diaphragm Pumps) for a wide range of industrial markets â including chemical, mining, oil & gas, power generation, pulp and paper, and general industry.
The following may be symptoms of fecal impaction: 1  Being unable to have a bowel movement. 2  Having to push harder to have a bowel movement of small amounts of hard, dry stool. 3  Having fewer than the usual number of bowel movements.  Having pain in the back or abdomen.
Symptoms. The symptoms of a tortuous colon are similar to those of irritable bowel syndrome and other gastrointestinal problems. They typically include cramps, bloating, excessive gas and irregular bowel movements. In some cases, skin rashes can develop due to waste and toxins not passing through the colon quickly enough.