- Edited
I was lucky enough, along with TSK to be involved in the above project right from the start. As many will know, this project was the brainchild of @DavecUK. The end result is a top notch lever machine that is far removed from the traditional machine. For starters, it has squeezed in dual springs to a domestic case, allowing lever lovers the true capability of a commercial machine (unlike most other domestic machines than can only handle a single spring). In addition, one boiler becomes two. Each boiler works independently and is controlled by a PID allowing total temperature control. The machine used 2 heater cartridges to warm up the group meaning you do not have to bring the boiler up to temperature before the group heats up. I find that from cold, the machine is fully functional in around 15 minutes. That is without flushing water through the group, or wrapping towels around or any other silly methods of trying to force things through.
I think the single most surprising thing, is just how easy and different it is pulling the lever with a dual spring. A little bit of grunt is needed to commence the pull, but the pressure required seems to decrease as you work through the pull, unlike my single spring Londinium which seems to require you to maintain or even increase the pressure needed as the shot progresses.