Blood that leaves the capillaries is deep maroon in color because red blood cells now contain reduced hemoglobin-hemoglobin that has given up its oxygen and taken on hydrogen ions. In the end, about 85% of the water that left a capillary at the arterial end returns to it at the venous end.
Depending on the vacuum model, this repair can take between 10 and 30 minutes to complete. Remove the Old Vacuum Power Cord. Power cord replacement is a basic repair for all sorts of machines and tools, and removing the old cord is always the first step.
Replace the old pipe with PVC and the proper connectors. These are available at your local hardware store, and you can get a PVC pipe with the proper threads to screw into a metal pipe. When doing this, wrap the threads with Teflon tape or cover them in pipe dope before tightening the PVC pipe.