Detecting and Clearing a Blocked Drain - Andrew Vanny Plumbing

Detecting and Clearing a Blocked Drain

Andrew Vanny Plumbing

What is a blocked drain?

A blocked drain is a prevalent issue within the plumbing system. No matter what part of the house the blocked drain occurs, it can cause a lot of damage and will interrupt your daily routine. You’ll know you have a blocked drain when water isn’t going down the drain as fast as it used to, or sometimes, it is not passing through at all.

What causes blocked drains?

In most cases, a blocked drain is caused by poor maintenance and care of the plumbing and drainage system. Various factors can lead to blocked drains in each different part of the house. These are listed below.

Kitchen Area

The kitchen sink often gets blocked for various reasons, but improperly draining food particles, including cooking oils and fats, is the main contributor to blocked pipes. Washing food particles down the drain is sometimes unavoidable, but you must try your best to prevent it, as the oils, fats and food scraps will solidify and slowly block the drain. 


In the bathroom, it is usually the floor drain and toilet that gets blocked. If the drain in the floor is blocked, the main culprit here would be fallen hairs from showering. While in the case of blocked toilets, it means the sewer system is already full of waste and tissue papers, or things such as baby wipes or sanitary products, which should never be put down the toilet. 


Outdoors, the property’s roof gutters can get blocked, or tree roots can penetrate the pipes underground. Blockages in the roof gutters and downpipes occur when rain washes debris or fallen leaves into them. Whereas, when the growth of a tree root has caused the blocked drain, this is a bigger problem in itself. In this case, licensed plumbers’ services will have to be rendered to clear the blocked drain.

How to clear a blocked drain?

The team at Andrew Vanny Plumbing use a modern and updated method of clearing blocked drains. In need of a reliable, licensed plumber? We service the Upper North Shore areas of Hornsby and the surrounding suburbs.

Step 1: Inspection

The first step in clearing the drain is to inspect the drainage system using our CCTV Drain Camera. This drain camera will help us determine the cause of the blocked drain in the property. It will also provide us with a clear image of any initial damage in the pipes caused by the blockage.

Step 2: Clearing

The second step after inspection is the clearing of the blocked drain. The Andrew Vanny Plumbing team uses high-pressure water jetting equipment to clear the drains effectively. This way of clearing a blocked drain is very efficient because it clears the drain quickly, without causing any external damage to the property, unlike the traditional method where an excavation process would be involved in drain clearing.

Step 3: Second Inspection

The third step after clearing the drain is another round of inspection using the CCTV drain camera. This will determine if the cause of the blocked drain is completely gone and the pipes are cleared. It will also tell us if there is further damage in the drain that needs to be addressed.

In the case of a blocked drain caused by the intrusion of thirsty tree roots, a pipe replacement is most likely needed to complete the rehabilitation of the drainage system. As the roots penetrated the pipe, there would be a leak already, and it must be fixed. Otherwise, roots will continue to grow towards the direction of the pipe in search of water.       

Step 4: Pipe Replacement (If necessary only!)

The fourth step is pipe replacement if this is required. After inspecting the drain pipe and clearing it using a water jet, we will see if a pipe replacement is needed to resolve the problem completely. The pipe replacement is an extensive process that involves excavating a part of the property. However, it will help in preventing the recurrence of a blocked drain due to tree roots. If you do go ahead with any excavation work, rest assured that the Andrew Vanny Plumbing team will provide a yearly free inspection to ensure no future problems arise. 

Step 5: Final Inspection

The final step in our blocked drain clearing process is another round of inspection. This is done to assure our clients that the drainage system is completely clear of materials that may block it, and is in good condition, especially if it underwent the pipe replacement process.

Are you experiencing any of the issues stated above? If you are looking for a trusted and experienced plumber in Hornsby, Killara, Thornleigh, Wahroonga, and their neighbouring suburbs, call us on 0480 009 605 or email us at

The Andrew Vanny Plumbing team has been providing a wide range of plumbing services for more than 30 years, and we would be happy to be of help to you and your plumbing system!  


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