Open Space conceptualization
A natural outdoor pool was built on the grounds of the Eisenberg vacation village in 2010/2011. The non-swimmer area consists of a semicircular pool. There are two halves of the beach, through the middle of which passes the wooden gangway. On the opposite side, in the deeper area, a vertical wall for angular supports is built. This partition is covered with a wooden profile. There are 3 depressions in the partition wall that serves as a continuous overflow into the submerged bottom filter. The non-swimmer’s pool shallows out to the beach area. The beach located in the water and is filled with sand (grain size 0.5 – 2 mm). In the deep zone, gravel 2/5 with a thickness of 0.3 to 0.1 m are used. The pool is sealed with a 2.0 mm PEHD plastic sealing sheet. The waterproofing runs in a path below the basin and aquaculture, as well as the beach. For safety reasons, a swimmer’s area was omitted.
Water treatment
The discharged water flows over the partition at three lowered overflow edges into the water body (aquaculture) of the superimposed bottom filter (submerged soil filter). The water passes through the soil filter located under the aquaculture and is directed through drainages into the pump shafts located in the filter body. A propeller pump is located in each of these shafts, which pumps the treated water back into the area of use through a discharge point. In addition, there is an emergency overflow in the filter for excess water. This emergency overflow drains into the ditch 50 m east of the bathing lake. A drainage system is also installed above the basin to direct the slope water into the same discharge point of the trench. The design of the water purification system is based on the FLL guidelines.
Characteristics
Total water surface: 1,230 m²
Usable water area: 855 m²
Water treatment wet filter: 375 m²
Nominal number of visitors: 290 visitors per day
Energy supply: The bath is powered by photovoltaic energy.
