Step 1 – Remove
label from the 2-liter bottle. On bottle #1, cut 2 cm below
shoulder to produce component "A," a shallow funnel
top and "C" a deep reservoir.
Step 2 – Poke
or drill a 1 cm hole in bottle cap.
Step 3 – Cut Bottle
#2, 1 cm below hip to produce component "B" a deep funnel unit
with hip taper.
Step 4 – Fill
reservoir with water. Add soil and plants to top chamber. To
be effective, the wick should run up into soil, not be plastered
along a side of the bottle. For better drainage, place a layer
of gravel, sand or vermiculite in the bottom of the soil unit.