* The parts for the pump mentioned here are all made of PVC:
* 3 adapters 50mm-25mm
* 2 couplings 50mm diameter
* 1 tee 50mm-25mm
* 1 or 2 elbows 25mm (in accordance with requirements for water outlet)
* 1 - 2 metres of 25mm diameter tubing (in accordance with requirements for water outlet)
* 1 - 2 metres tubing 50mm diameter
* 2 (glass) marbles with a diameter greater than 25mm
* 2 screws 50mm long (minimum)
For the piston:
* 1 - 2 metres of tubing 40mm
* 1 Tee XXmm-40mm
* 1 x tube cap 40mm (or preferably slightly larger)
* acetone (or similar solvent)