I like the homemade purifier, what kind of charcoal, and where do you get it? I've seen filters for pools that use sand for particulates, but the charcoal is good for bacteria.I think well have water for a while. We have a coo-op with deep forest wells they have propane pumps. But for purifier a 5 gallon bucket 12 inch pcv pipe coming out of the bottom. 4 inches of gravel , 4 of sand 4 of A- charcoal. Use fine wire on bottom of pipe cover with cheese cloth. I get the 5 gallon jar to catch in from general store.