So my most recent wrestle with the Optimus 155 stove resulted in me breaking it. OK I will also now confess this is the second time I've done it. The piece of the stove used to pressurise the kerosene is called a pump rod and it has an o ring attached to the end to maintain pressure. If you pump the pump rod too hard the o ring comes off and the rod just flaps around loose - therefore you are unable to build up the pressure. The first time I did this Neil replaced the o ring and all was well (when he lit the stove). When we were last at the boat I set about making tea. Neil said "Why don't you use the little gas back up stove?" Me: "No, I need to master this thing, just start on your lunch and I'll have your tea ready in two hours haha". So off I go pumping like mad to get the little black line up into the green space on the pressure gauge. For safety, we completely let the pressure out of the stove when not in use so I needed to get the pressure up f...