We have a Berkey
water filter. Well water and tap water go through it fairly quickly but rainwater passes through the filter extremely slowly.
Anyone else had this problem?
Rain comes off the hut roof into grey opaque IBC tank. We're in the woods in southern England.
I wonder if the rainwater is so full of microbes (algae?) that it blocks the pores on the Berkey filters?
The rainwater comes to us God-given but we need to go fetch well water, so it would be convenient if the Berkey would filter rainwater effectively.
Any suggestions?