I will put good photos in soon but for now you will have to rely on paint for pics
And ill put in a vid soon
Step 1: Materials
1 piece of PVC pipe 35cm by 50mm (or whatever)
2 end caps 50mm HIGH PRESSURE END CAPS because the the weak ones will make the chamber EXPLODE it happened to me.
plummers glue or dam strong glue
car valve or motobike valve
more dam strong glue like areldite stuff (for the bike valve and hose fitting)