[Hoot Gibson]

This next video explains how to make a water filter. Something that I want you to keep in mind is that when making a water filter, you make it in layers. Such as, the bottom-most layer might be a layer of grass or clothing. The layer above that might be charcoal. Then, a layer above that might be sand. Simply keep in mind that water filters are made with layers. Here's how to make a water filter:

From what I understand, the charcoal they're talking about might just be burnt wood by simply putting wood into a fire and using it after it's completely burnt. However, I'm not really sure. I've tried to look this information up, and this is a complete guess from what I've seen. Please find out for yourself. Charcoal is important because, from what I understand, it helps the most in filtering out water.

If you guys don't mind, I'll probably wait to share more videos later. I was going to try to post all of the videos that I wanted to in this post, but I'll probably wait until tomorrow to continue.[/QUOTE]Activated charcoal (or activated carbon) is far more effective for filtering water or air than powdered charcoal. It's what is used in systems that filter tap water, aquarium tanks, etc. I use it as part of the fume extraction system for my laser cutter/engraver. I have not had to buy any activated charcoal yet, but I understand that you can buy 50 lb. for just over $100 if you shop around. Smaller quantities can be pretty expensive but you can buy the stuff off of eBay.