In the regulation published in 2011 on the Amendment of the Planned Areas Zoning Regulation, rainwater must be collected and stored. The relevant regulation is as follows. 2000 m² of the mechanical installation projects of the buildings to be built on parcels larger than; It is obligatory to include a rainwater collection system in order to collect rainwater to be collected from the roof surface, if necessary, filtered and collected in a tank and used in building toilet flushes. The volume of the rainwater tank is calculated based on the maximum average monthly rainfall per m² in the province where the building is located and the roof area of the building. The part of the collected rainwater that is more than the needs of the building toilet flushes can be used in the garden or other common areas by showing it in the installation project. The relevant administrations may also require the rainwater collection system to be built on smaller parcels, the collection tank volume calculation method and additional usage areas. In other words, while the obligation currently covers structures to be built on parcels larger than 2000 m², this amount can be changed by the relevant municipality and made compulsory for smaller structures. Because with the change in seasonal norms with global warming and the effect of decreasing precipitation, there is no water left even in dams and lakes, and water scarcity is increasing day by day, causing the necessity of taking such measures not only in our country but also in the world. The rainwater collection tank can be located within the building or in the front, side and back gardens or under the garden ground, provided that it does not violate the setback distances. If the collection tank has a drain line, it is connected to the rainwater network, it cannot be connected to the wastewater network. In buildings with a gray water system, if it is possible to give the collected rainwater to this system, it is not required to build a separate collection tank for rainwater.” Rainwater tanks are generally an underground integrated system. As rainwater tanks; we can offer solutions such as polyethylene tanks, modular tanks, fiber tanks, septic tanks, inflatable tanks in variable liters and sizes. You can get support from our Santaş sales team for solution water tanks suitable for your needs and budget. The recycling of all roof gutter water and all building wastes after being recycled, treated and filtered will also become mandatory in our country in the future, just like the rainwater tank obligation, just like the systems in Europe. Source: https://www.resmigazete.gov.tr/eskiler/2021/07/20210711-1.htm
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