DIY Wet Dry Filter

I Goooooogled my brains out and hard a hard time finding any info from the
21st Century. I know the idea is still the same, but most of the articles I
found were text with little or NO pictures. I am capable of reading, and
understanding the mechanics of the process, but some pictures would sure
help me determine if I am on the right track.

Anyone have any useful links to drawings and pictures for a DIY Wet Dry
Filter???

THANKS
JOhn ><>