In a home with older toilets, an average flush uses about 3.6 gallons (13.6 liters), and the daily use is 18.8 gallons (71.2 liters) per person per day. In a home with ultra-low-flow (ULF) toilets, with an average flush volume of 1.6 gallons (6 liters), the daily use is 9.1 gallons (34.4 liters) per person per day.
Quick Answer. Elevated monocyte levels, or monocytosis, may be due to chronic inflammatory disease, stress response, leukemia, parasitic or viral infection or tuberculosis, as MedlinePlus indicates. A complete blood count gives insight into the number of each kind of blood cell present in the body, according to WebMD.
People with certain skin infections and some people with human papillomavirus infection of the genitals can also have a low number of monocytes. Low or high numbers of monocytes do not usually cause symptoms. However, people may have symptoms of the disorder that caused the change in monocyte number. Diagnosis is by blood testing (complete blood count) done when a person has signs or symptoms of an infection or autoimmune disorder.