Close bottle flap
Tie knot in tube to control drip rate
Tie pipe gently to the plant
To prevent the bottle flap from opening up, put a weight (ballast), such as a small rock, on top of the flap.
6 Tie a knot at the end of the tube to control the number of water drops that comes out of the tube.
7 The number of water drops is controlled by tightening the knot at the end of the tube.
8 To keep the tube still or in place, tie it with the stem of the plant using a plastic rope, but not too tightly.