Blocked drains can be quite messy, particularly in a commercial kitchen or bathroom with high traffic.

All restaurants, cafes, hotels, and places with high traffic such as the conference venues you can find in Melbourne need to meet a greater volume of use. A clogged sink or flooded shower is disagreeable and inconvenient, but it can also bring about a serious health hazard and close operations down.

In this guide, we talk about some of the common causes of clogged drains in commercial kitchen and bathrooms, and how to correct and prevent them later on.

What Are the Symptoms of a Blocked Drain?

There are a number of early warning signs that you might have a blocked drain. These include:

  • A sulphur-like smell
  • Gurgling sounds coming from the drain
  • Overflowing pipes fixtures
  • Drips, puddles and wet flooring
  • Slow-draining basins
  • Changes to water pressure

Knowing these symptoms can allow you to identify issues prior to a serious problem develops.

What Problems Does a Blockage Cause?

Blocked kitchen and toilet drain are not only disruptive, they can result in persistent and expensive problems. Some of these include:

  • Unpleasant odours
  • Stagnant water, which attracts pests and insects
  • Water stains on your own walls and ceilings
  • Excessive water bills Brought on by leaks
  • Sewage release on Your Premises
  • Broken or burst pipes
  • Flooding

How Do I Avoid A Blocked Drain?

Many drainage issues can be avoided with routine preventative maintenance. Here we have a look at three of the top causes of a blocked drain and the best ways to prevent them.


Oil may be a liquid, but it’s not okay to pour it down the sink. The accumulation of grease from cooking oils is a typical cause of clogged pipes, slow drains and water copy. The dirt and lard in oil solidify because they cool, creating up inside the drain and bringing more grime.

Solution: Never pour oil down the drain. Place oil into a container and throw it from the bin or phone a professional oil removal support. Sluice the drain at least one time a week with 2—3 litres of boiling water to prevent build-up. In case you have a grease trap, then be sure to clean it every 4–6 months.

Food Scraps

Many people throw food scraps down the drain without even considering the effect it can have on their plumbing. Food scraps become stuck and block your drain, but they also grow germs and mould, making a sewage-like odour.

Solution: Use a sink strainer to capture large residue and debris which could contribute to congestion. Scrape off food plates into a bin or compost before urinating in the sink. Never tip coffee ground down the sink. Coffee granules don’t break down in water also will clump together to clog your plumbing.


In places with showers such as the Melbourne stadium, hair accumulates in bathtubs and showers, trapping soapy residue and skin particles in the drain to create an impermeable clump. Even small hairs from shaving a beard can accumulate on the pipe walls and build up gradually.

Solution: Regular removal of hair in the drain is essential. Put on gloves, remove the grate, and pull any hair out to prevent build-up. Brush your hair over the bathroom floor instead of in the shower, so that you can sweep it up. Replace soda basin wastes with regular fittings to promote additional free-flowing drainage.

How to Fix a Blocked Drain

There are a number of simple things you can attempt to resolve a blocked drain. Begin by pouring several litres of boiling water down the sink. Use a plunger and then pour through more boiling water.

To correctly use a plunger, place the cup over the full drain opening and then pay the lipped rim. Push the plunger up and down to make suction and push the clog down the drain. If the drain is still blocked, then use a chemical drain cleaner, for a more environmentally friendly option, a mix of baking soda and vinegar.

When Should I Call a Plumber To get a Blocked Drain?

Regardless of the best DIY intentions, there are times when you need to call a specialist. A qualified plumber has the expertise and sophisticated equipment to handle chronic and repeated blockages. Using electric eels (drain snakes), high-pressure water jetters and drain camera, a plumber may find and remove blockages caused by oils, hair and food, as well as:

  • Foreign objects, like cotton balls and buds, jewellery, bottle tops and tiny children’s toys
  • Faulty installation with insufficient fall for a waste transfer
  • Cracked, damaged or cracked pipes.

Your plumber will wash the blocked drain completely and determine any problems which may cause long-term or future damage. For structural issues, the only corrective measure may be to re-lay segments of the pipe.

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