Eyüpsultan Backflow Valve Installation
If you have noticed dirty water rising from the basement floor drain when a downpour starts, backflow valve installation in Eyüpsultan may be the most likely fix. Many people assume it is a blockage, but when the street sewer fills up, water can also flow back into the building's own line in the wrong direction.
At Cantley, we first check which of your building's drains sit below street level, then follow the line with a camera to find where it joins the main sewer. We choose the position of the valve and the type that suits the pipe diameter based on that inspection. If the valve can be fitted inside the manhole, the floor is not broken up. If it has to go on a buried line in the basement, the work stays limited to that spot. When the job is done, we test the line by running water through it and show you how to maintain the valve.
Which buildings in Eyüpsultan are most affected by backflow?
In the south of the district, on the slopes running down from around the Eyüp Sultan Mosque to Haliç, old buildings and narrow streets sit close together. On these low points, where rainwater runs downhill quickly, basement and ground-floor drains that sit below street level are the first to be affected when the street line fills up. In multi-storey apartment blocks around Alibeyköy, a basement or ground-floor flat can face the same risk.
In places where many people share the same drain, such as student flats or dormitories, dirty water rising from the toilet during a downpour may go unnoticed for a while. In detached houses with gardens in Göktürk and Kemerburgaz, the garden-level drains can be the lowest point. In buildings like these, you first need to see where the line connects to the sewer, and then fit the valve in the right place.
Frequently asked questions
Do I need a backflow valve if water comes up the basement drain in the rain in Eyüpsultan?
Whether you need one depends on seeing if the water is really coming back from the sewer. If there is no problem in dry weather and dirty water rises only during heavy rain, backflow is likely. In that case, the best approach is to inspect the line with a camera and then decide.
What should I do if water still comes up in the rain even though the building has a backflow valve?
The flap of the existing valve may be jammed with sediment, or its seal may be worn. The valve may need cleaning, repair or refitting in the right place. Adding a new part without seeing the cause may not solve the problem.
Is the floor broken up for backflow valve installation in Eyüpsultan?
No, not always. If the valve can be fitted inside the manhole, the floor is not broken up. Pipe material and layout can differ in older buildings, so the method is decided after the site has been inspected.
Our other services in Eyüpsultan
Other districts where we offer Backflow Valve Installation
If water comes up in the rain, let us inspect your building together
You can call us on 0212 923 66 85 or write to us on WhatsApp. At your building, we first explain the cause of the problem, and then we decide together whether a backflow valve is needed.