@zander Zander thanks for the info. This will have significant effect on my bottom line and let me build more. I greatly appreciate those of you who are posting actual experience. I hope to be joining you soon with detailed documentation of my build experience.
Here's my updated version. After using the previous Down-n-Dirty I found that A) it worked quite well, but B) It was noticeably slower than the standard injector, and C) the wand popped off several times at critical moments of foam injection. In this edition I brought the end of the injector right down to the blades with only a 1/4" to spare, and I used 1 1/4" pipe instead of 1/2" pipe to reduce back pressure and increase flow rate. I expect this to work even better than the first try.
Howdy Michael -
I'm in Vietnam - not done a workshop, bought an on line course with Alosha - a guy who's involved with domegaia and plan to get building our first dome in first week of November. Just joined this forum and appreciating the info etc.
Spent my youth building and farming so returning to it is not so daunting - but hey a steep learning curve I imagine lines ahead~
Thanks for asking Micheal - been following aircrete Harry for a bit (not as long as domegaia but hey .... like his experiments and hints ... helpful).... Hope you can find him, domegaia or someone soon in your neighborhood,