![Fig.2](/images/new-backgrounds/136960/1369607x1.webp)
Fig.2
Step 3 Bottle Preparation
Locate the coloured bottle caps and straight lengths of plastic tubes. Insert the straight tube firmly into the bottom of each bottle cap see Fig.3
Fig.3
Step 4 Tube Preparation
4
Locate the coloured bottle caps and straight lengths of plastic tubes. Insert the straight tube firmly into the bottom of each bottle cap see Fig.3
4