Atleast once per week give your shower some TLC. Use a microfiber cloth, add some hot water to clean the glass, then wring the cloth out tight and wipe down glass (and don’t forget to dry) – no cleaning product needed. The tray should be cleaned regularly with hot soapy water and a soft cloth / soft brush and then dried off. Do not use scourers, abrasives or chemical cleaners. The use of hydrochloric acid in any ratio should not be used as this may discolour the tray surface.