by CA99 on Thu May 13, 2010 1:12 pm
Good to see you around again; welcome back.
Pumps are generally the most troublesome aspect of homemades, at least they have been so for me. If you're using manufactured pumps (say from a broken or cheap water blaster), you should have little trouble getting it to seal if it's around 1/2" and fits in 1/2" Sch 40. As for nozzles, I almost completely stopped using drilled endcaps after discovering just how much better lamination you can get from a well-made water balloon filler. Even hose barbs do a considerably better job than drilled endcaps. The balloon filler I used was about 8mm, hooked up to my fairly weak CPH (which only had two layers of LRT and was about as difficult to pump as a CPS 1000 or so) and I got at least CPS 2000 range thanks to the superior lamination of the nozzle. Oh, and plus I can easily fill water balloons with it.
The picture isn't showing up here but it does on SSC. Check the url, or I could fix it for you. In the meantime, I'll post about the design at SSC.