It is possible to use the same water for a longer period if a filter system is installed to the tub. Filter system has a timer which enables setting the system to work when it is needed. The working cycle of the system is also adjustable.
We also offer a cabinet for filter system which protects the system against cold on winter. It is possible to install an electric heater (3 or 6 kW) to the same circulation with the filter system in order to keep the water temperature on a certain level.
Installation and User Manual