We could since we use the Wassersparerset together with an appropriate showerhead reduce our water consumption by 10 to 4 cubic meters per month. The run regulator whistling a little our cat was also a little surprised but it is to be mentioned for completeness only because that does not really bother.
! The wide to turning up the main tap for hot water was in our cabin with all water-saving products (the which are not of this company) led to a permanent change from hot to cold.