Can I use store bought lump charcoal to make handmade water filters? Do they usually treat it with chemicals that would seep into the water? I know how to make my own charcoal but I was considering this for a bug in situation.
>>1095563
You might be better off with aquarium charcoal, that way you know it doesn't have any accelerant-type chemicals in it.
>>1095585
Oohh... I forgot they made that.
4 layers, charcoal sand charcoal sand. our thats what i read. this was in a big drum.
>>1095563
Google the difference between charcoal and "activated" charcoal. This isn't an activated almonds meme thing, fyi.