I have found that rainwater clogs my berkey black filters very fast
at nearly $200cdn (or more) to replace a pair,
its outta reach for me
when I first got the berkey I tried cleaning the filter with the scrubbie
unfortunately, for me, I used too hot water
and the filter stopped working completely
it just let the water run freely thru it
my mistake
the directions say DONT use hot water
but I didnt read the instructions til after..duh
next set of filters I used slightly warm water as recommended
when it was time clean them
seemed to work.. for a while
I only use clean water for cooking and drinking.
for household use, I use rainwater/snow as I dont have running water
I have a cup that I use to dip/transfer rainwater to a pot to heat up for doing the dishes etc
this cup, if not washed constantly,
gets a dark film on its outside
that film is what clogs my filters
in winter I use melted snow with the same results(film)
I have started using a toothbrush for cleaning the filters
and even so, it takes 2-3 days to filter down the 2 gal from top tank to bottom
fortunately for me, I only use about 4-5 gal a week for drinking/cooking
I wish there was some way to backwash the filters with warm water
I,m interested in the filters in this post,
but am skeptical that I mite have the same problem as with the berkey? (film buildup)