Gray-B-Gon wind-powered evapotron for graywater disposal

Step 18 Make the drum: cover with tulle

Summary: Add a tulle bulge and cover lacing with tulle.

Materials:

•  Tulle, 2-1/2 yards, from a fabric store.
•  10 mini zip ties.

Now you need a panel of tulle 27" wide.  Tulle usually comes about 54" wide; if so fold it lengthwise and cut it in two.  Set aside one panel as a spare.  Wrap the other panel loosely around the drum once, to find the length, and trim most of the excess fabric from one end.

In the rest of the process, as you fasten the tulle, resist the temptation to tension the fabric so it looks unwrinkled and elegant.  Floppy fabric sags downward and picks up more graywater.

Form a crumpled roll from the tulle scrap.  Lay it over a zag, near one wheel, and ziptie it in place.  The goal is to produce a bulge that will brush the tray floor (or at least come close) to mop up the last bits of graywater.  You may need bulkier material than just the tulle scrap.

Anchor one end of the tulle panel by zip-tying one corner to each wheel.  Pull the mesh sideways to extend over the rim, then poke a hole about 3/4" from the edge, using a zip-tie's tail or other pointed object. Zip-tie through the hole and around the nearest spoke.  Make sure each sharp-cornered zip-tie head lies on the rim's side or inner surface, where it won't come in contact with the black plastic tray liner.

Wrap the tulle panel around the drum. Anchor the free end with another pair of zip ties.  Add two more zip ties at halfway around, then at 1/4 and 3/4.