Which means back into the filtration experiments. Since the clay did not separate from the sand, there must be no clay, or something's wrong. But the water was clear as a bell. That gave me an idea to recycle that sand for the next filtration experiment.
With this experiment, I'll be using a small water container ( about 16 oz ) and this recently used sand only. However, the cotton is still to be used on the bottom end ( or top end depending on how you look at it), else the sand will go out the nozzle. I wanted to use paper, but the paper wouldn't sit still on the bottom. It floated back up to the top when I put the wet sand in.
In just a few minutes, the water started to clear again as the sand settled down to the bottom. I'm going to replace the bottle cap with one that has a couple holes dug into it so that the water will drain out. Let's see if the water stays clear. Otherwise, there'll be something of a change in the conditions so that the sand can stay put. ( doggone it )
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