Hanneke,
 
I am so sorry for mixing you up with Garret.
 
I hope the Prill beads work, and please do let us know so i can also chuck out 
my flouride filter. BTW, it is said that Big Berkey removes 99.99% of the 
chlorine.
 
Our water source has natural flouride (too much) and crazy officials still buy 
and add flouride to  our water. Our water has #3 readings of flouride, a lot 
higher than alloweb by EPA. Grrrrr.
 
Melly