Botanica K - system of grey waste water management

The first and pilot project Botanica K with the system of gray waste water management was developed by SKANSKA company. SKANSKA is the first company who developed the residential house, where substituted drink water for treat grey waste water and they used the system for the place, where it made the most economic and ecologic sense – for flushing toilets.
Botanica K residents can be satisfied. They saved 550 m3 in 6 months compared to other residents. Results of research are Botanica K residents happy and more than 75% residents seems that the grey waste water system is very positive and suitable.
Residential house Botanica K was groundbreaking in many ways, because company prepared the project to aim also high rating for the project from environmental certification BREEAM. The big part of the project was how to reduce drink water consumption in general. The goals they achieved by installation of economical armaturs that consumption of water was reduced around 14% and part of the grey waste water from the sinks and showers they recycle and reduce consumption for another 26%. These data had been listed by Petr Dušta, project manager Skanska reality, who was in charge with Botanica K.
The system of gray waste water management – purified bathroom water (mostly from wash basins, bathtubs and showers) is reused for flushing toilets. If gray water from these sources is not enough, the system will supplement it with captured rain of drinking water.