Blocked drain? The best tips to learn how to unblock a drain

bathroom kitchen

Blocked drains are an inconvenient and annoying problem. Whether they occur in your bathroom or kitchen, they can get in the way of your daily routine and even damage your home if the drain overflows. You can see our tips on how to prevent a blocked drain, find out how to unblock a sink drain and more.

HG solutions for blocked drains


HG has various solutions for blocked drains. HG drain and plug unblocker is a versatile, ready-to-use product for your toilet, shower or sink. It effectively unblocks your drain and does not affect plastic pipes.

For your sink, HG duo unblocker is suitable for the most stubborn blockages in your kitchen sink or wash basin. It can also be used to unblock shower drains.

A blocked sink in the kitchen is often caused by grease and food remains. HG kitchen drain and plug unblocker contains natural micro-organisms, which break down blockages caused by food and grease.

Blocked sink or blockage in the bathroom? Many blockages in the bathroom are caused by hair, as well as a build up of soap, skin grease and even toothpaste. HG drain and plug hair unblocker is an ideal product for your bathrooms sink and shower.

To remove bad smells in kitchen or bathroom drains, you can also see HG drain odour remover.

3 tips to prevent a blocked drain

The following tips will help prevent blocked drains in the kitchen, toilet and bathroom.

1. Avoid putting food down the sink
When cleaning pots and pans, you should scrape any food remnants into the bin before rinsing. You can also purchase a filter which fits above the plughole. This helps prevent food from going down the drain. You should also avoid pouring cooking oil down the drain, as this can solidify and stop water from passing through. Try pouring it into an empty bottle then disposing of it.

2. Avoid putting things down the toilet
The only things you should put down your toilet are toilet paper and tissues, as these dissolve and break down to avoid causing blockages. You should avoid putting too much down at once though. Also avoid flushing kitchen roll, feminine pads, tampons, nappies and dental floss. These will not dissolve and will likely cause your toilet to block.

3. Clean shower drains and sinks
Keeping on top of cleaning your shower and sinks can help to avoid blockages. Loose hair, as well as buildups of hygiene products and skin grease can block your shower or sink. Try and regularly remove hair from the drain and clean your sink and shower often.

How to clear a blocked drain?

No matter how hard you try, sometimes you can’t avoid your drain getting blocked. As well as using HG, there are some home remedies for unblocking your drains.

3 household remedies for unblocking a drain

Various websites and blogs mention several household remedies for dealing with blocked drains. However, these methods do not guarantee success.

1. Soda and hot water 
Take a handful of soda and throw it in the blocked drain. Then pour hot water in the blocked sink or drain. If this doesn’t work, you can also add vinegar. After trying this solution, you should pour at least 1 litre of boiling water down your drain to clear.

2. Cola
As well as being a refreshing beverage and effective at removing rust, cola can also help unblock your drain. Pour a bottle down, then wait 15-30 minutes and pour a litre of boiling water into the blocked sink. Again, this may not be so effective with serious blockages.

blocked drains3. A plumber's snake
This tool can be used when the clog is deeper down in the pipes. The flexible steel cable bends to fit  through the pipes. Push the plumber’s snake as far down the drain as you can and then turn the hand spinner. The turning motion dislodges the blockage and unblocks the drain.

If you’ve tried these methods and they weren’t so effective, you can try one of the many solutions from HG, which are developed especially for blocked drains.

Causes of blocked drains

A blocked drain or blocked sink can occur often, but what exactly causes a blocked sink?

How to unblock a kitchen drain
As mentioned, food remains in the drainpipes are the main cause of a blocked sink in the kitchen, as well as grease and oil from pots and pans. You can see more about how to unblock a sink.

Blocked bathroom sink
Soap remains and hair are the main culprits when it comes to blocking the bathroom sink. With this buildup, over time the drain becomes narrower until it is completely blocked.

Blocked toilet
Toilet paper and tissues are fine going down the toilet, unless it’s too much at one time. As mentioned, you should avoid flushing other items like tampons and dental floss down.

Other causes of a blocked toilet included a buildup of limescale. An overflowing sceptic tank or a blocked drain near the tank can also cause your toilet to block.

blocked drains in the bathroom

Unblock a shower drain
With the shower, a buildup of loose hairs is the main cause of a blocked shower drain. Hair gradually blocks the drain after washing or shaving in the shower. Soap remains and skin grease are also major causes of blocked shower drains. You can read more about unblocking a shower drain.


Do you have a good tip for unblocking a drain? Let us know!

Frequently Asked Questions about blocked drains

How do you unblock an outside drain?

Unblocking an outside drain is different to your sink, shower or toilet. Outside drains are usually blocked by debris, like leaves, stones and dirt. To unblock an outside drain, like a sewer drain, you can use a drainage rod and pressure hose to clear the debris. Then, you can use the pressure washer to clear the rest of the small particles and unblock fully.

How can I tell if my drain is blocked?

The main sign of a blocked drain is when your water goes down slowly, or doesn’t go down at all. Other telling signs include a smelly drain and gurgling sounds when the water goes down the plug.

Can bleach unblock a drain?

Although bleach is very acidic and an effective cleaning remedy, it has no use when it comes to unblocking a blocked drain, as it cannot breakdown deposits of oil, food, hair and more. Pouring bleach down your blocked drain may block it even more.



Can you explain why you don't find this tip helpful?

Recommended products

Interested in HG drain and plug unblocker (1L)?

Find below a point of sale near you or order online through one of our sales partners.

HG is among others for sale at these stores and web shops:
SPAR
TESCO
HOMEBASE
CLAS OHLSON
ASDA Logo
YTC
NISA LOGO
ROBERT DYAS
COOP UK
Order online via our partners

It is convenient and quick to order HG products online via one of the online shops of our official sales partners.

HG drain and plug unblocker (1L)

Recommended product

HG drain and plug unblocker (1L)

15815 reviews

1L

Other tips for Drains & Blockages