Is the reason sand filtration effective, because the virus is too big to fit between the sand particles as the water flows around it?
I have no clue on how it works, so any insight is appreciated.
I have no clue on how it works, so any insight is appreciated.
Most of the filtering action happens in that layer. Viruses have no problem getting past sand particles.
I also found this report, which may be of interest, from the University of Arizona in 2008 for Coronavirus survival in water and wastewater:
https://west.arizona.edu/sites/default/files/data/Gundy2008_...
10 days or more in water, and 2 to 4 days in wastewater.
My local municipality only uses chlorine, so I am a bit concerned.
We had our own sand filtration system, but ‘decided’ to instead use the town next-door’s system, instead.