4 ms·

Don't do that. You risk scalding burns. Far more people get scalded by tap/shower water that is too hot than contract legionnaires by several orders of magnitud

• ars 8y ago
  120F is the temperature at the tap. Your hot water tank should be hotter, and you should have a tempering/mixing valve at the tap. And not at the dishwasher or washing machine. > Far more people get scalded by tap/shower water that is too hot than contract legionnaires by several orders of magnitude. First of all virtually no one actually sets their tank at 120F. Second: "It is estimated that Legionnaires' disease is the cause of between two and nine percent of pneumonia cases that are acquired outside of hospital." [1] "There are an estimated 8,000 to 18,000 cases a year in the United States that require hospitalization for legionnaires" [1] "11,028 scald burns in children younger than 3 years old annually." [2] "8,620 visits per year among Adults Aged ≥65 Years" [3] I don't have numbers for the full population, but your "several orders of magnitude" is clearly quite off. At best it's a single order of magnitude - and that's only because almost no one actually sets the temperature so low. If they did the number would swing. And don't forget the pneumonia rates. This is not some rare unheard of disease. [1] doi:10.1016/s0140-6736(15)60078-2. [2] https://www.researchgate.net/publication/276065254_Scald_burns_in_children_under_3_years_An_analysis_of_NEISS_narratives_to_inform_a_scald_burn_prevention_program https://www.researchgate.net/publication/276065254_Scald_bur... [3] https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5836a1.htm https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5836a1.htm