Warsaw Water Filters

The Lindley filter (Polish: Filtry Lindleya ) are water filters that were built in the years 1883 to 1886 in Warsaw and ul between the streets Koszykowa, ul Ludwika Krzywickiego, are Filtrowa ul and ul Raszynska. The street ul Williama Lindleya leads directly to the entrance to the filters, which is located at ul Koszykowa 81.

They belong to the Warsaw water pipe system, which was designed and built by the British engineer William Lindley. Has completed the construction by William Heerlein Lindley, son of William Lindley.

The Works issued Socrates Starynkiewicz (1820-1902), Russian general and President of Warsaw (1875-1892) in his first year in office. 1881 Starynkiewicz has approved the project of Saint Petersburg. This year, the construction of the first Warsaw water supply and sewer system began; 1886, the construction was completed. For the first time the inhabitants of Warsaw received on July 3, 1886 water from the filters that existed at that time from a group slowly filters, a fresh water tank, a pump room, and a water tower.

At Lindley's projects included the construction of a river pumping station on the left bank of the Vistula River and a filter station with drinking water treatment plants.

During the construction of the then most modern technical developments have been used. The focus was on defining the details. During the construction of all, even the smallest objects were used the highest quality materials that have been subjected to a multistage control. The main building materials were specially baked, moisture-resistant tiles and white glazed brick. On a large scale also granite and sandstone blocks were used.

Water pipe system

For Warsaw water pipe system included the filter station - the Lindley filter - and the river water pumping station of the Central line center, where the Vistula River water was collected and pumped into pipes to the filter station.

The investments of the filter station were covered with earth. Among them there are now four raw water clarifiers, six groups of slow filters, and nine fresh water reservoir. The seventh slow filter group was replaced by a Ozonierungsanlage and activated carbon filter.

The Warsaw waterworks system to Lindley times

• Upper Town - water supply by means of a water tower, which is located on the grounds of the filter station
• Lower city, that is, the district Powiśle in today's urban district Śródmieście and the district of Praga - water supply directly from the slow filters

Water treatment processes

The water from the pump station flow was passed slowly into the filter, some of which fulfill the function of the closed tanks.

The pre-filtered water was passed into the fresh water tank, and then into the pump room, from where it was pumped into the water tower where the water supply system of the upper town began.

Some years after the commissioning of the filter further closed, the slow filters upstream tanks were necessary because had shown the poor quality of the water in investigations. Therefore, the site of the station from 1890 was expanded and started the construction of additional tanks.

The increasing demand for water led in the years 1930-1933 to supplement through a rapid filter system. After her commissioning, the water was in the balance cisterns ( the previous closed cisterns ), continue in the quick filter, and then passed into the slow filter.

1931 started to chlorinate the water after passing through the slow sand filter.

Gruba Kaśka

Since 1964 the district of Praga is supplied by a fountain called " Gruba Kaśka " ( Thick Kate ), draws the water from the Vistula below the river bottom. The water is filtered through thick sand layers below the Vistula ground.