# How to describe a blocked drain to a plumber over the phone

Source: https://cantleyvidanjoraltyapi.com/en/blog/describe-blocked-drain-phone/

Published: 2026-10-17

## In short

- Say which drains are blocked and which ones are running normally, one by one.
- If you have used a chemical drain opener or any other chemical, always say so. The team's safety depends on it.
- The building type and your floor show whether the problem is only in your flat or in the shared line.
- A short video sent on WhatsApp shows more than a long spoken explanation.
- Access details such as parking, the lift and the location of the manhole cover make it easier to start the job.

When you describe a blocked drain to a plumber over the phone, the most useful details are which drains are affected, when the problem started, what you have tried, how the building is laid out and how the team will reach the address. Gathering these five points takes a few minutes and makes it easier for the team to decide which machine and which attachments to bring.

Saying "the bathroom is blocked" in a panic is a natural reaction, but a bathroom has a washbasin, a shower, a toilet and a floor drain, and these can be connected to different lines. Walking around the flat once and noting down the answers to the questions below before you call keeps the first conversation short and productive.

## Which drains are blocked and which are normal?

The list of affected drains is the first step in working out where the blockage is. If only the kitchen sink is slow, the problem is most likely in the trap or the kitchen line. If the toilet, shower and washbasin are all affected together, the blockage may be further down the line, at a point where several drains join. Mentioning the drains that run normally also helps the plumber rule out possibilities.

For each drain, make a quick note of the answers to these questions:

- Does the water not go down at all, or does it go down slowly?
- When you use one drain, do you hear noises or see water coming from another?
- When you flush, does the water level in the toilet bowl rise?
- When the washing machine empties, does water come up through the floor drain?

## When and how did the problem start?

Whether the blockage came on suddenly or built up slowly gives a clue about its type. A toilet that blocks all at once often points to wet wipes, sanitary pads or something dropped in by accident, while a kitchen drain that has been slowing down for weeks suggests a build-up of grease. Recent renovation work, a newly fitted washbasin or heavy rain are also details the plumber needs to know.

Say as well whether the problem has happened before. If the same drain blocks every few months, the line may need a camera inspection, and the team will bring the inspection camera with them accordingly. If you remember which method was used the last time the drain was cleared and where the blockage came from, share that too. It makes it easier to tell whether the problem is in the same spot or somewhere new.

## What have you tried? Always mention chemicals

You need to tell the plumber about every method you have tried, especially chemical drain openers. Some drain openers contain strong acids or alkalis, and they stay in the pipe while the drain is blocked. If the team removes the trap or starts the machine without knowing this, the chemical can splash and harm the skin and eyes.

It is enough to know the name of the product and how much you poured in. If you still have the container, send a photo of it. If you tried a plunger, took the trap apart or pushed a wire into the drain, mention that too. Things like the tip of a wire being left inside the pipe directly change how the job is done.

## Why do the building and floor details matter?

The type of building and the floor your flat is on help show whether the blockage is in your own flat or in the building's shared line. In apartment blocks, waste water from the upper floors runs down through shared pipes called stacks. When the lower part of the stack is blocked, water comes up first through the drains on the ground floor or in the basement. For this reason, an overflow on the ground floor may not be a problem for just one flat.

Also give the team the following information:

- Whether it is an apartment building, a block within a housing complex, a detached house or a business premises
- Which floor you are on and whether the building has a basement
- Whether your neighbours or the flat below have a similar problem
- Whether building management has been informed

## How will the team reach the address?

Access details may look minor, but they decide how smoothly the job can start. The team arrives with machines and hoses. If they know in advance whether the vehicle can park nearby, whether the lift works and whether there is a narrow staircase, they can prepare accordingly.

If you know where the manhole cover in front of the building or in the garden is, say so. If there is a car, a plant pot or other items on top of the cover, having them moved before the team arrives speeds up the work. For businesses, opening hours, customer traffic and who holds the key should also be discussed beforehand.

## If you are calling for building management or a business

If you are calling on behalf of building management or a business, giving the team a combined picture of which flats and which floors are affected makes their job easier. Work on the shared line may mean entering the basement, the boiler room or the car park, so decide beforehand who has the keys to these areas.

If an overflow is still going on, asking residents or staff to cut down on water use limits the damage on the lower floors. In restaurants and cafés, saying at which hours the kitchen is busiest also helps fit the job into a suitable time.

## What photos and videos should you send on WhatsApp?

A short, clear video carries more information than a long spoken description. A brief recording showing how the water sits at the drain opening, how the level in the toilet rises when you flush, or the water level in the manhole lets the team understand the situation before they arrive. When filming, keep these points in mind:

- Film while you are using the drain so the behaviour of the water is visible.
- Show the area under the washbasin and sink, including the trap connections.
- If a floor drain or manhole is overflowing, include its surroundings in the frame.
- Photograph the label of the chemical product you used.
- Add a photo showing the building entrance and the parking situation.

## Frequently asked questions

### What should I say when I call a plumber?

Say which drains are blocked, when the problem started, what you have tried and how the address can be reached. This information helps the team arrive with the right machine and come prepared.

### Do I need to tell the plumber if I used a chemical drain opener?

Yes, if you poured in a chemical drain opener, always say so. The chemical waiting in the pipe can splash when the trap is removed or the machine is running. If the team knows, they take protective measures and choose their method accordingly.

### Is it useful to send a video on WhatsApp?

Yes, a short video makes it easier for the team to understand the problem before reaching the address. How the water flows, which drain is overflowing and the condition of the trap are clearly visible on camera, and the team prepares the necessary equipment accordingly.

### How can I tell if the blockage is in the building's shared line?

If several flats or the drains on the ground floor have problems at the same time, the blockage is most likely in the shared line. In that case, inform building management too, because work on the shared line concerns the whole building.

## Call when your notes are ready

Once you have gathered the details, call us on 0212 923 66 85 or send photos and videos on WhatsApp. The Cantley team works 24/7 in all 39 districts of Istanbul and clears blockages without breaking tiles or walls.

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