The top-up tank requires filling with RO water every other day, probably my most arduous chore.

My skimmer cup is emtied out every 3 days or as & when required.

I add about 12 scoops of Kalkwasser powder into the Stirrer every 2 weeks or when the level gets below 2cm's.

The Reactor needs re-filling with Rowalith 'C' about every 2 months.