Kostverlorenvaart

 Tije de Jong paired a vintage lathe with a KINU Traveller hand grinder:  

If your tank fed Londinium is beeping, it probably thinks the water in the tank/reservoir is low. (It also beeps if filling the boiler takes rather long. In that case switching off and on sorts that.) Possibly the water filter took out too much minerals so the water is not conductive to electricity. In that case add unfiltered water. Also possible: the tiny metal nipple inside the bottom of the reservoir has been pushed up a little and is not connecting to its contact below it. Push the metal 'nipples' back down to be flush with the plastic and you should be good.

 (on the Londinium forum, a fellow owner asks where the NRV -- Non Return Valve is located. I am temporarily unable to post pictures in that thread so I post them here and provide a link on the forum;) The little piston inside the NRV NRV close up NRV location in machine close up location in machine