Aah, ooh. But a few of the many images by Alis Pelleschi. Found at “(B) for Blog – Create Build Destroy,” link to Pelleschi’s website: http://www.alispelleschi.com/About
A simple and reliable release mechanism for water rockets can be built from PVC plumbing supplies and cable ties, as in the diagram. This will cope with pressures in excess of 100 p.s.i with safety. Link to Instructables on making bottle rockets.
I’m doing a back stroke through the weekend, and I’ll see you after the flip turn. Cheers