Step 31: On playa: install the water filter
Examine the panty-hose for holes, and tie a knot above any holes in the legs or feet. Turn the panty-hose inside out. (You may find, as I do, that looking down at the inside of panty-hose is disturbing. It's surprising what a difference reversing it makes.)
Stretch the waist over the bucket rim, and tie it in place with twine. A good knot to use is the lark's head noose ( http://www.instructables.com/id/Larks-head-noose-an-easy-useful-knot-that-tig/ ) It requires about 8 ft of twine. Be sure to "lock" it by adding a shoelace knot. If you need to adjust or replace the panty-hose, pull out the shoelace knot and slide the lark's head sideways to loosen it.
A sand filter is often used when processing graywater for reuse. We just want to get rid of it, starting by removing the chunks. A fine mesh filter does this well -- playa dust doesn't clog it, and it's much easier to transport.