Sarıyer Backflow Valve Installation
Backflow valve installation in Sarıyer is most often needed in seafront buildings in areas such as Tarabya and İstinye, because dirty water rising from the basement drain after rain is a common problem here. When the street line fills beyond its capacity in heavy rain, wastewater enters the building's line in the wrong direction and overflows from the lowest drain.
The overflow soils belongings, walls and floor coverings, and cleaning up is laborious. The valve works like a flap that closes off flow coming back from the main line: it opens with water coming from the building side and seats itself shut under returning pressure. At Cantley, we first use a CCTV drain camera inspection to establish which of the building's drains sits below street level and where the backflow comes from, then we fit the valve in the right place.
Backflow risk in Sarıyer's building stock
In buildings close to the shore in Tarabya and İstinye, the wastewater line has limited fall, so water moves slowly. When the main line under the coastal road fills up, water can return into basement floors. In older houses on the slopes, the line may be made up of sections from different periods, which is why it is inspected with a camera first.
In Sarıyer's business centres and offices, the problem is usually noticed when water reaches a ground-floor shop or a storeroom in the basement. The tenant is the first to notice the smell or the damp, while the landlord may not know which drain the water came from. During the survey, the observations of both sides are considered together.
Frequently asked questions
Which buildings in Sarıyer need a backflow valve?
A backflow valve should be considered in buildings with a basement, a semi-basement or a garden floor that sits below road level. If water rises from the basement drain during rain, that is the clearest sign.
What should I do if water still comes up in the rain even though there is a backflow valve?
Ask for a survey first, because the valve may be jammed with sediment, its seal may be worn, or it may have been fitted in the wrong place. The valve can be cleaned and repaired, or refitted in the right place. Do not try to remove and refit it yourself.
Is the floor broken up when a backflow valve is installed?
When the valve is installed inside the manhole, the floor is not broken. If the valve has to go on a buried line, the work is limited to that one point, and the area is cleaned up when the job is finished.
Our other services in Sarıyer
Other districts where we offer Backflow Valve Installation
Seeing water in your basement when it rains?
Tell us about your building and we will work out together which drain the problem starts from. You can reach us on WhatsApp or at 0212 923 66 85.