Tuesday, September 2, 2014

Back in the saddle again...

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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