I made venturi tonight and it blows the stock one out of the water.....lower flow rate an twice the bubbles. After 4 days the old one was barely building up any foam.....about 15 minutes after I put this venturi on the foam was almost t the top of the riser tube...awesome!
I took a 1" piece of 1" PVC and placed a piece of 1/8" acrylic on top of it. After a few seconds of blasting it with a heat gun I took the chuck end of a 1/2" drill bit and stretched the acrylic the length of the PVC. I then tapped it and threaded my air stem in and glued another 3/4" piece of PVC on the other side of the acrylic. To finish i just cut my chunk of 3/4" PVC to the ricght length, shaved it down a bit and glued it on......bam, an easy, and effective venturi!
Old one on the right
Pump side
Quick vid of it in action
![](/forum/proxy.php?image=http%3A%2F%2Fi77.photobucket.com%2Falbums%2Fj62%2Fshowjyr%2Fth_2009_07140010.jpg&hash=691ff70acb3edc430d60bb6d22c85b5e)
I took a 1" piece of 1" PVC and placed a piece of 1/8" acrylic on top of it. After a few seconds of blasting it with a heat gun I took the chuck end of a 1/2" drill bit and stretched the acrylic the length of the PVC. I then tapped it and threaded my air stem in and glued another 3/4" piece of PVC on the other side of the acrylic. To finish i just cut my chunk of 3/4" PVC to the ricght length, shaved it down a bit and glued it on......bam, an easy, and effective venturi!
Old one on the right
![2009_07140005.jpg](/forum/proxy.php?image=http%3A%2F%2Fi77.photobucket.com%2Falbums%2Fj62%2Fshowjyr%2F2009_07140005.jpg&hash=6a5aa7b3e1df5a9ab67c90ef152e0875)
Pump side
![2009_07140009.jpg](/forum/proxy.php?image=http%3A%2F%2Fi77.photobucket.com%2Falbums%2Fj62%2Fshowjyr%2F2009_07140009.jpg&hash=37e5b902ab7b5ac99bee0f042abe5167)
Quick vid of it in action
![](/forum/proxy.php?image=http%3A%2F%2Fi77.photobucket.com%2Falbums%2Fj62%2Fshowjyr%2Fth_2009_07140010.jpg&hash=691ff70acb3edc430d60bb6d22c85b5e)