Typhoid fever is contracted by the ingestion of the bacteria in contaminated food or water, through poor personal hygiene, or close contact with someone who is infected. Patients with acute illness can contaminate the surrounding water supply through stool, which contains a high concentration of the bacteria.
Turn off the main water valve that provides water to the bathtub and open the faucet handle to relieve the pressure. Remove the handle cover cap by prying it off with the blade of a pocket knife. Unscrew and remove the central handle screw, using a Phillips screwdriver. Pull off the handle.
Fix common leaks from a temperature and pressure relief valve or a water heater drain valve by checking temperature settings and mineral deposits. A simple cap solves the water heater drain valve problem. Diagnosing a temperature and pressure relief valve leak.