A popular meme YouTuber ("Daily Dose of Internet" [0]) featured a clip of someone lighting their tap water on fire. Commenters explained that flammable water is common in places where fracking pollutants have contaminated the ground water.
Powered water heater anodes are now a thing. Supposedly they can make your water heater last almost indefinitely and get rid of any bad smells from sulfur in the water.
Perhaps just a little dangerous if you've got fracking contamination?
I have installed one of these before in a domestic hot water tank exposed to unfavorable water supply (well, midwest aquifer), and they do what is on the tin. Also, working with their customer support department (Québec) is an experience (both positive and unvarnished), highly recommend.
>Commenters explained that flammable water is common in places where fracking pollutants have contaminated the ground water.
I don't think it's the contaminants from the fracking fluid itself, more that you can get natural gas finding its way into the water supply that creates this (and it can happen naturally even without fracking). The stuff in the fluids that's a problem is mainly a problem because it's toxic, not flammable.
Among the many examples:
https://www.youtube.com/watch?v=EfHcypKLxgc
https://www.youtube.com/watch?v=LP5fIKqobm0 (This is not an example of fracking pollution, according to child comment.)
I was stunned, to say the least.
[0] https://www.youtube.com/@DailyDoseOfInternet