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Bahçelievler, Istanbul

Bahçelievler Backflow Valve Installation

Bahçelievler backflow valve installation usually comes up after a rainy night, when dirty water rises from a basement floor drain. In the older blocks of Siyavuşpaşa, Soğanlı and Kocasinan, buildings with a basement or garden-level flat carry this risk more often, because their drains sit below street level.

When the sewer network overflows in heavy rain, wastewater can travel back up the building's line and come out of the lowest drain into a room or car park. A backflow valve stops this reverse flow: its flap opens for water leaving the building and closes against pressure coming from the street. At Cantley, we first inspect the line with a camera to see which of the building's drains sit below street level and where the line connects to the sewer, explain the cause to you, and only then move on to installation.

Backflow valves for Bahçelievler's older lines and business district

Most of Bahçelievler was built up with blocks dating from the 1970s to the 1990s, and many of them have old cast iron pipe and PVC drain pipe running side by side. Sediment that builds up at the joints narrows the line, and in buildings rebuilt under urban renewal it is also common to find the new line connected to the old street connection at a mismatched gradient.

The restaurants, bakeries, cafés and business centres around Şirinevler square and Yenibosna use water constantly along the D-100. In Yenibosna, a café or restaurant whose drain sits below street level can get dirty water from the street line coming back in the rain. If you are a building caretaker and you see water in the basement, using a camera to see where the line joins shows which drain is responsible and avoids unnecessary digging.

Frequently asked questions

Does every building in Bahçelievler need a backflow valve?

No, not every building does. For buildings where water comes up through a basement or ground-floor drain in the rain, and whose drains sit below street level, installation is usually a solution worth considering.

Do you have to break the floor to install a backflow valve?

If the installation can be done inside the manhole, the floor is not broken. If the valve has to go on a buried line in the basement, the work is kept to that spot and the area is left clean when the job is done.

Does an installed backflow valve need maintenance?

Yes, the valve needs to be checked from time to time, because if sediment builds up in front of the flap it will not close fully. For this reason the valve is fitted at an accessible point, and after installation the location of the service cover is shown to the management.

If water comes in when it rains, let us inspect your line together

You can call us on 0212 923 66 85 or write to us on WhatsApp. When you write, telling us which floor of your building has the problem makes the first assessment easier.

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