Quick firing APH ie no slow ball valve

[CDMT]

This APH I am working on has a functional quick-fire trigger. I will be connecting it to a bicycle brake handle attached to a handle below the stream machine. This will allow me to be able to pump and fire at the same time. I have surrounded it by other large water cannon to show the relative size of this beast. I have used a stream machine as a pump due to its excellent handle and ease of replacement. Also who else loves the irony of a stream machine slaved to a Super Soaker?

[marauder]

^Now that's how you introduce yourself. Welcome to WWN.



I would have gone for a more comfortable reservoir... but hey it'll get the job done. Also, let me be the first to invite you to Frozen Fury, the weekend of November 29th in Connecticut.

[TheSoaker]

I have used a stream machine as a pump

My God.... I envisioned that 2 years ago...

[soakinader]

How does it work? Seems like a neat firing mechanism. You pull the soap pump inwards, and water comes out the quick-connect right?

[CDMT]

Yes the Purell dispenser pushes the check valve and the water comes out the quick connect. The picture and diagram I drew above show the interior mechanism. I had to rotate the picture because it kept getting cut off.

[the oncoming storm]

It took me a bit of time to figure it out from your diagram, but basically you are using a backwards inserted check valve as a pull valve (well push actually) that is ingenious.

[soakinader]

Wow. I like this guy, he posts good pictures and diagrams and everything!



So I have two questions. At the top of your diagram (as pictured) your o ring is floating (I edited to show this) and also there is this spring portion that I don't see the purpose of. Does the rod slide through the disc? The pressure should be enough to force the disc against the o ring, making a pressure seal. Is the spring just an original part of the soap pump?

[CDMT]

Well the gold colored piece at the top is the brass check valve. The rod you asked about is attached to the disc which the o-ring is attached to. The rod is a guide rod strung in between two posts with a hole in each on either side of the check valve to guide the o - ring back into place. The reason that the o ring is floating is because the soap pump is depressed in the diagram which has opened the check valve by pushing on it's guide rod. The reason that I put the soap dispenser spring back in is because the brass check valve's spring isn't strong enough to close the o ring and force the soap pump back quickly after depressing. Also the soap pump is is much cheaper to replace than the brass check valve in the future.