Do you have a hot spring in your basement? In a way, you might … 

This is really cool.  Or, actually, really hot.  A new paper is out from Regina L. Wilpiszeski, Zhidan Zhang, and Christopher H. House at Penn State on their cool (oops again, hot) Citizen Microbiology project on microbes in water heaters. See the paper here Biogeography of thermophiles and predominance of Thermus scotoductus in domestic water heaters | …