First of all, I'm new here and in a bit of a hurry. Second, I'm Dutch so my English could be a bit... you know, especially with the terms used in this forum.
Long story short: Local water battle organised via facebook, at the moment there are 2700 people attending (this is gonna be real fun).
First thought was "i'm gonna buy a overpriced super soaker and kick ass". *Investigate*. *Find out most of the new super soakers suck*. So that is how i came here, i was going to make one my own and kick ass. Looked up a bit of stuff on the site and it didn't sound to hard, and it wasn't.
However, since PVC is only used for electrical wiring here it's hard to get the stuff i needed so i decided to go for copper.
The design is from Aurum and is found here (at page 3 you can find the final plan).
After getting the mats and putting everything together (had some difficulty with my pc because that would be a coca cola bottle and the pump) i had it working.
However, since i was aiming for it to be better than the cps 2000 it lacks range... a lot.
I think i barely made 8 meters.
So now i come to you, hoping you can help me figure this out, i'm open to all suggestions but the battle is monday so i has to be finished by then.

Quicky how i attached the bottle since it was 1,5mm short for attaching perfectly with my 22mm pipe. Heaten pipe, push it in. Use some hard pvc glue, and that ring thing which is arround it now. I know, a bit crappy but for now it holds.
The water reservoir is a 5 gallon camping show which will hopefuly fit into one of my school bags... And the tube running from that fitted nicely in a 15mm pipe so that was lucky.
The check valves are 22mm so that's why the couplers/reducers?? come from.
And for the 22/22/15 tee which could've been 22/22/22, already bought it and was lazy.