Open Now
4.8-Star Service
Find a Plumber
Near You

The team at Fixed Today Plumbing are 100% Covid-19 Compliant and Vaccinated.

Fixed Today Plumbing

Are Chemical Drain Cleaners A Good Idea?

Thinking about using a chemical cleaner to unblock your drain? Here is a guide as to whether it is suitable for your plumbing system.

Clogged drains are one of the top plumbing issues that residents face. You are left with a smelly and messy environment, whether a blocked kitchen sink or a slow-draining bathroom sink. There is also the risk of other issues affecting your plumbing that you are unaware of.

You would be inclined to purchase a miracle in a bottle or liquid drain cleaners that quickly remove stubborn blockages inside the pipes, such as hair, soap, cooking grease and food. And although it looks pretty convenient, you don’t know what you are putting down your drain and ultimately into your city’s water system. Many chemical drain cleaners (caustic drain cleaners, oxidising drain cleaners, and acid drain cleaners) are on the market. Researching what liquid drain cleaner will work best for your unique clogged pipe problem is beneficial.

Chemical Drain Cleaners

Why Do Drains Block Up?

Clogs in the sink and clogged drains can occur for several reasons. The most common cause is an obstruction in the pipework that stops the water from flowing smoothly through your pipes. Your kitchen sink is easily clogged as much food preparation is done there and cleaning. And other drainage systems can become obstructed through daily use. Products and items that block the drain are:


You lose a lot of hair naturally throughout the day. When you wash your hair, mainly if the strands are long, they get washed down the drain and become tangled in the walls of the pipes. Over time, the hair becomes knotted and creates a plug.


Grease is another cause of clogged drains. When you wash your hair and body with shampoo and body wash, these liquid cleaners go down the sink and can build up in the walls of the pipes. Utilising these products in excess may be too much for the condition of your plumbing.

Trapped Food Particles

During food preparation, you may accidentally wash away pieces of food. You may think washing away some rice grains is ok because they are small. But over time, that food will get stuck and plug up the pipe walls causing more food and other material to become lodged.

Cooking Oil

Fats and oils work with heat. When these cooking oils cool down, they will solidify. Once the hot oil touches the cool pipes, it will harden, cause a barrier, and eventually clog the sink. Think about this the next time you want to pour your leftover vegetable oil.


You use liquid soaps as part of your shower routine. But these products can become like sludge and create clogs in bathroom drains. Using too much liquid soap can damage your sink and pipework. Other items and objects will combine with the soapy product and clog the water channels.

Small Objects

Some small household objects can become stuck in toilet drains and other sink openings around your home. Rings and other smaller jewellery pieces risk slipping off fingers and getting accidentally washed down. Clogs will occur if the item is larger than the diameter of the drain pipe.

Too Much Toilet Paper

One of the biggest culprits of a blockage is too much paper being flushed down the toilet. Even though toilet paper is one of the few things that can be put down the line, using too much can impact the quality of your pipework.

Tree Roots

The primary reason for a blocked drain is tree roots growing inside your pipework. Tree roots thrive in moist environments. A cracked pipe has water escaping from the openings, and the roots will attach themselves and start growing. It won’t happen overnight, but the roots will grow and cause an obstruction over a long period, weakening the pipework.

Signs Of A Blocked Sink

Some indicators of a blocked drain are:

If any of the above happens in your home, you may have a clog somewhere in your plumbing. It is possible to clear clogs and blockages yourself. There are a variety of products on the market that advertise drain cleaning. These liquid cleaners can be DIY to remove minor blockages in toilet bowls, bathrooms, kitchen, and laundry drains.

Pouring Water Kitchen Sink

Do Chemical Drain Cleaners Damage Pipes?

Chemical drain cleaners or caustic drain cleaners are readily available in most supermarkets and home hardware stores. The primary purpose of liquid chemical drain cleaners is to move or break down foreign material or organic material lodged in the pipework. The harsh chemicals, usually sulfuric acid and sodium hydroxide, found in the cleaner supposedly help clear the channels from the inside.

You understand how most drain cleaners work, but do you know what you are pouring or flushing into your pipes? These products can have harsh chemicals that slowly eat away at your pipework.

Different drain cleaners’ chemicals release heat and turn grease into a soap-like substance to easily dissolve a drain clog. But depending on your type of pipes, most cleaning agents create heat as a chemical reaction and can soften PVC pipes or cause corrosion in metal pipework. You will be left with leaks and weak water channels that can affect the plumbing in your property. If you use chemical drain cleaners regularly, you are shortening the lifespan of your plumbing considerably.

What Do Plumbers Recommend To Unclog Drains?

You can adopt many other options and methods to clear clogged drains in your bathroom, kitchen, and laundry. And you can find what you require around your home. A plumber will always recommend these options first.

Vinegar And Baking Soda Mixture

One cup of baking soda, 1 cup of vinegar and 1 cup of hot water to make an environmentally safe drain cleaner. Slowly pour the hot water down the drain. Then pour the baking soda followed by the vinegar. Let the solution sit for at least 5-10 minutes. To achieve a good clean, 30 minutes is optimum. Flush the mixture down and slowly pour with hot water once more. You may leave it for 24 hours to ensure proper cleaning of hair and grease.

You can even leave the product overnight if you are using this for your toilet drain cleaner. The chemical reactions between the two ingredients will loosen the grease. This solution is great for the environment and is a safe alternative to other cleaning products, as it won’t harm the plumbing fixtures around your property.


You can purchase a drain snake or a plunger from most home improvement stores, and using a plunger is pretty straightforward. You should choose a plunger with the right size and shape for your needs. The one that works best for a toilet is flange-shaped. It has a narrow opening that can fit snugly into the bowl drain opening.

For other drain openings, it is better to use a flat-headed plunger. It will have the best seal around the opening.

Ensure you have a firm grip on the handle. Make up and down movements by pushing and pulling. It is essential to create a tight seal around the opening. Try this method a few times until you have cleared any obstruction. You can use a plunger for kitchen, bathroom and laundry drain openings.

Are Chemical Drain Cleaners A Good Idea?

So there is no reason why you should use a chemical drain cleaner. The product may be doing more damage to the drains and environment than good. Damage is more likely to occur when drain cleaner is used on older metal pipes. Commercial drain cleaners like hydrochloric acid or oxidising drain cleaners can also harm septic systems by killing beneficial bacteria in the septic tank. Chemical cleaners can mar bathroom and kitchen fixtures. Call a licensed professional to help remove a stubborn clog in your property for the best drain cleaner.

There are other options available to you that work just as well. So, do chemical drain cleaners work? They may be for a short period, but for a permanent solution to having clear waterways, contact a licensed plumbing team to help.

Need a Plumbing Service?

Call A Plumber

For extreme blockages, it is always best to call a professional plumber. They will help find the best way to clear clogs of all severities.

A plumber will have tools like a high-pressure jet blaster and a CCTV camera to thoroughly inspect your pipework to check for significant damage in the line. They will have the best knowledge in clearing a clogged drain and can give you tips and recommend ways to keep your plumbing working at its best.

We Also Have Some Related Articles

Are Blocked Drains Covered By Insurance In Sydney?

Are Blocked Drains Covered By Insurance In Sydney?

Is your Sydney home insurance going to cover the cost of repairing a blocked drain? Our guide explains what your policy covers in an emergency plumbing situation.

7 DIY Tips For Clearing A Blocked Downpipe

7 DIY Tips For Clearing A Blocked Downpipe

Are you looking for effective ways in which you can clear a blocked downpipe? We have compiled all the essential information to help you out.

DIY Plumbing Checklist

DIY Plumbing Checklist

Want to know the things you should be checking for in your home when it comes to your plumbing system? Follow our DIY plumbing system checklist!

8 Common Septic Tank Issues

8 Common Septic Tank Issues

Having a tough time figuring out why the septic tank is not functioning optimally? Follow our guide to 8 potential problems with your septic system.

Contact Us Need a Plumbing Service?

1800 349 338