1) If you own a Laurastar Smart ironing system
Remove the water tank without switching off the ironing system, fill it with cold tap water up to the MAX level then put the water tank back in the boiler.

2) If you own a Laurastar ironing system (such as Laurastar S4a, Laurastar S5a, Laurastar S6a, Laurastar S7a, Laurastar Pulse, Laurastar S, Laurastar S PLUS, Laurastar S Xtra ):
Remove the water tank without switching off the ironing system, fill it with cold tap water up to the MAX level then put the water tank back in the boiler.

3) If you own a Laurastar steam generator Laurastar Lift, Lift Xtra or Laurastar Lift +:
1. Lift the cover of the water tank
2. Keep the cover of the water tank open
3. Remove the water tank by pulling on its cover
4. Fill the tank with tap water

Then, to put back the water tank:
1. Lift the cover of the water tank.
2. Keep the cover open.
3. Push the water tank back into its place, with the cover open, then close the cover.