# Büyükçekmece Backflow Valve Installation

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When water rises from a basement drain in the rain, the question we hear most is this: will backflow valve installation in Büyükçekmece solve it? The answer depends on which drain the backflow comes from. When the street line fills up, a backflow valve protecting the lowest entrance of the building cuts off this reverse flow.

When we arrive at the address, we first check which drains on the building's line sit below street level, then follow the line with a CCTV drain camera inspection to find the point where it joins the sewer network. This inspection decides where the valve goes, and the spot is often chosen inside a manhole or on the basement line. After installation, we run water through the line to check that it flows freely, and we show you where the valve is and where its maintenance point is.

## Büyükçekmece's building stock and the risk of backflow

The coastal strip was used as summer homes for many years, but today most of the houses with gardens along Mimarsinan, Kumburgaz and Güzelce in Büyükçekmece are lived in all year round. The drain lines beneath them were laid for summer use. Because the older settlement on the lake side stands next to newer blocks, the problem changes from address to address. In low-lying homes close to the sea, when the street line fills up, dirty water can rise through the ground-floor drains.

Picture a landlord in Kumburgaz who rents out a basement flat. The tenant living there notices dirty water rising from the floor drain during a downpour and calls the landlord. In this case, clearing the blockage on its own does not stop the returning water: the outlet needs a valve as well. For a family living on the garden floor in Güzelce, or for site management, scanning the line from the start means not having to deal with the same problem every year.

## Frequently asked questions

### My basement floods when it rains in Büyükçekmece. Is a backflow valve enough?

Yes. If water comes up from the basement drain in the rain, a backflow valve is one of the clearest solutions to this problem. First we check with the camera at which point the line takes in backflow, and we decide the valve's position based on that inspection. If the building already has a backflow valve, we check that first, because it may be jammed with sediment.

### Is the floor broken up during backflow valve installation?

When the valve is installed inside a manhole, the floor is not broken. If the valve has to go on a buried line in the basement, the work is kept limited to that one spot. When the job is done, the area is left clean.

### Is an installed backflow valve enough on its own, or does it need maintenance?

It needs maintenance, because sediment building up in front of the flap stops the valve from closing fully. That is why we show you the valve's position and its maintenance cover. We also explain to the management or the building owner when to check it for sediment.

## If your basement takes in water when it rains

Let us look at the problem together at your address. You can call 0212 923 66 85 or write to us on WhatsApp.

Phone: 0212 923 66 85 (tel:+902129236685)  
WhatsApp: https://wa.me/905315687185