How to “Pumping” – Can you make it! episode 18 w/ Matthias Dandois, Alex Jumelin & Travis Collier Posted on September 13, 2016 by Effraim — Leave comments ↓ For episode 18 in the “Can you make it?” how-to series, Matthias Dandois and Alex Jumelin team up with Travis Collier and take you through one of the most important modern day techniques, how-to pump.