Reminder.
Thought it was about time to descale and change filters on the Osmio. Not had any problems or odd tastes but it is one of the items it is easy to forget.
Drained and removed filters, fitted empty ones not forgetting the mineralisation one.
Mixed citric , flushed to fill=waited =drained. Dissolved Milton and flushed through to fill = wait..
Emptied drained refill + flush. - - -fresh tasting water OK . All good