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Drain Unblocker Liquid – Clear Flow

(21 customer reviews)

APT’s Clear Flow is an ultra-concentrated, solvent-free, eco-friendly liquid drain cleaner. Our liquid drain cleaner works to clear blocked drains and drain pipes in less than 30 minutes.

Why buy our eco-friendly drain unblocker liquid?

  • Powerful heavy-duty formulation – removes the most tenacious deposits
  • Rapid results – protects against future blockages
  • Will not corrode pipework, metal, stainless steel or plastic
  • Caustic-based, solvent-free
  • Made in the UK
  • 5L bottle + water = 100L of Clear Flow

£0.02 per litre when diluted

Size Options: 12 x 1 litre | 2 x 5 litres | 4 x 5 litres

FREE delivery to mainland UK when you spend £100 with us. If you’d like to buy our best-rated liquid drain cleaner from Northern Ireland, the Isle of Man, the Isle of Wight or the Scottish Highlands, contact our sales team via our live chat.

from £61.44£57.44 for 2 x 5L

Additional information

Weight N/A
Litres

12 x 1 litre (12 litres), 2 x 5 litres (10 litres), 4 x 5 litres (20 litres)

Additional information

Weight N/A
Litres

12 x 1 litre (12 litres), 2 x 5 litres (10 litres), 4 x 5 litres (20 litres)

Product Information

What is Clear Flow?

Clear Flow is a safe, solvent-free, eco-friendly drain unblocker liquid used to tackle the toughest jobs and most tenacious drain blockages with confidence. Our best-selling liquid drain cleaner’s unique formula also helps you protect against re-occurrence of the problem in the future.

The secret lies in its powerful heavy-duty formulation. This makes APT Clear Flow the perfect drain clearing liquid. Our liquid drain cleaner is the go-to for the fast break down and digestion of fat, grease, food waste from sink traps, shower traps, food waste units, sluices, industrial drainage and pipework systems. Clear Flow drain unblocker successfully clings to the pipes to prevent further blockages.

This fast-acting drain cleaner liquid is as simple to use as a regular maintenance products to stop blockages and remove unwanted build up.

As the ultimate drain clearing and unblocking liquid, Clear Flow has been used for over 30 years in commercial and industrial premises for the fast removal of blockages. For this reason, Clear flow is well known to be the best liquid drain cleaner for businesses that need fast results.

What are the benefits of our drain unblocking chemicals and liquids?
  • Powerful – rapid results on blocked drains and pipework
  • Safe – won’t attack pipe work or corrode metal and plastic fittings
  • Affordable – Avoid the cost and hassle of emergency drain clearance
  • Solvent and acid free formula – kind to the environment and users
  • Safe for use on stainless steel

If you’re not sure whether liquid drain cleaner is right for you or whether another product in our range would be more suitable, get in touch via our live chat. Our UK-based drain flow experts will be happy to help.

Directions

How to use our liquid drain cleaner?
  • General maintenance – Simply pour Clear Flow drain cleaner liquid down the blocked drain. Leave the drain blockage liquid to work for approximately 30 minutes and rinse with plenty of hot water.
  • Unblocking drain pipework – Fill a bucket 3/4 full of hot water, add Clear Flow at 20% then pour directly into drain system to allow the drain unblocker to work. Wait for 20 minutes and flush through with hot water. Repeat as required.
How do I dilute Clear Flow drain clearing liquid?

As our UK-based drain unblocker products are super-concentrated, they must be diluted before use.

To dilute our drain cleaning liquid, mix one part drain unblocker with 20 parts warm water.

Properties of our liquid drain cleaner
  • Caustic-based
  • Solvent-free chemical drain cleaner
  • Acid-free

Liquid Drain Cleaner FAQ's

How to unblock a drain outside?
  1. Firstly, clear out any obvious fat and grease.
  2. Pour the Clear Flow liquid down the blocked drain and leave for approximately 30 minutes for the drain unblocking chemicals to work.
  3. Once the 30 minutes has passed, slowly rinse with plenty of hot water to continue to break up the solids.
Can I use your drain unblocking chemicals and liquid drain cleaners to maintain waste and drainage systems?

Yes, you can.

Clear Flow will help to break down and digest fat and grease from all drains. To prevent and remove build up, use Clear Flow industrial drain cleaner liquid regularly to maintain all waste and drainage systems.

This can be done by adding Clear Flow Liquid into a bucket, dilute with 25 parts of hot water, leave for 20 minutes and rinse slowly with hot water.

How to unblock a drain pipe?

Clear Flow drainage clear liquid is designed to tackle the toughest and most tenacious blockages safely and quickly. Here’s how:

  1. Clear out any obvious fat and grease from the drain pipe.
  2. Fill a bucket ¾ full of hot water, add 20% Clear Flow and pour directly into the drain system to allow the chemical to work.
  3. Wait for 20 minutes and flush through with hot water.
  4. Repeat as many times as required until blockage is clear.

Our liquid drain cleaners are most effective when used hot and are specifically designed for fast removal of heavy fat and grease. Continue to maintain the drainage system in order to prevent any further blockages.

Is drain cleaner flammable?

No, ours isn’t.

Unlike some popular drain unblocking chemicals, Clear Flow is not flammable and will not attack any pipework or corrode metal and plastic fittings. However, our drain clearing liquid is a hazardous substance so you must wear suitable protective clothing, gloves, and eye protection according to COSHH guidelines.

If our liquid drain cleaner makes contact with skin, it can cause severe burns. For this reason, we suggest:

  • Clear Flow is kept locked away out of the reach of children
  • Do not breathe in vapour/spray and if in contact with eyes, rinse immediately with plenty of water similarly
  • If in contact with skin, take off contaminated clothing and wash off skin with plenty of water.
Is liquid drain cleaner safe for pipes?  

Yes, ours are. As our Clear Flow are eco-friendly and solvent-free, they’re safe for use on all pipework.

You can use our drain unblocker for dishwasher clogs, grease trap blockages and bathroom drains.

If you’re not sure which liquid drain cleaner is right for the task at hand, speak with our customer service team via our live chat.

Do liquid drain cleaners work?

Yes, they do!

Our liquid drain cleaners are an effective solution to clogged drains. Containing eco-friendly chemicals, our liquid drain cleaners break down organic matter, fat, grease and other contaminants, allowing the clog to be flushed away with water.

How does liquid drain cleaner work?

Our liquid drain cleaners are caustic-based, so use specialist soda chemicals to dissolve and break down organic matter causing the clog in the drain.

They work by speeding up the decomposition of grease, oil, hair and other materials to leave your drains functioning as they should.

How soon will I get my drainage cleaner?

When you place an order for drain cleaner liquid at APT, we’ll strive to get your order to you the next-day if you order before 12pm.

We offer free shipping to mainland UK when you spend £100 with us. For orders outside of mainland UK, please contact our customer service team for a bespoke shipping cost.

In the current climate, we ask that you allow up-to 3 days. Please note that these delivery dates are estimates and are subject to change based on factors such as product availability and shipping carrier delays.

If you have any questions or concerns about your order, please don’t hesitate to get in touch with our technical team.

Do you accept returns?

Yes, we do.

Returning your liquid drain cleaner is thanks to our fuss-free returns policy.

All you need to do is:

  • Email sales@apt-icc.co.uk with your:
    • Name
    • Company Name & Address
    • Reason for requesting a return of the item and photographs should they be relevant
  • On receiving acknowledgement, please pack your items in the original packaging and send them back to us within 14 days.
  • Send the items to us using recorded delivery or any method that provides proof of return.
  • We will aim to process your return within one week.

See more information on our returns policy and 100% Money Back Guarantee, see our Terms and Conditions.

21 reviews for Drain Unblocker Liquid – Clear Flow

  1. aptcommercialchemicals

    Running a bakery, we deal with constant grease issues. APT’s Clear Flow Drain Unblocker Liquid is a lifesaver. It’s powerful, eco-friendly, and ensures our drainage system remains trouble-free.

  2. aptcommercialchemicals

    I’ve been using APT’s Clear Flow for years, and it consistently performs well. Recently, it resolved a bathroom sink blockage within 30 minutes. The eco-friendly aspect is a bonus.

  3. aptcommercialchemicals

    Our cafe relies on APT’s Clear Flow for keeping our drains clear of grease and deposits. It’s industrial-strength, eco-friendly, and provides rapid results. A must-have for any commercial kitchen!

  4. aptcommercialchemicals

    As a homeowner, I trust APT’s Clear Flow for my drain issues. It’s powerful, eco-friendly, and recently cleared a clog in my utility sink quickly and efficiently.

  5. aptcommercialchemicals

    Running a restaurant, we can’t afford drain problems. APT’s Clear Flow is our secret weapon. It’s powerful, eco-friendly, and prevents future blockages, ensuring our kitchen runs smoothly.

  6. aptcommercialchemicals

    I’ve trusted APT’s Clear Flow for years, and it’s always delivered. It recently resolved a bathroom sink clog in under 30 minutes. The eco-friendly aspect aligns with my values.

  7. aptcommercialchemicals

    APT’s Clear Flow Drain Unblocker Liquid is my first choice for drain issues. It works quickly and efficiently, and the fact that it’s eco-friendly is a big bonus. Recently, it tackled a persistent shower drain blockage.

  8. aptcommercialchemicals

    Being eco-conscious, I appreciate APT’s Clear Flow. It’s not only effective but also environmentally friendly. It recently cleared a stubborn utility sink blockage, and I couldn’t be happier.

  9. aptcommercialchemicals

    I had a bathroom sink blockage, and APT’s Clear Flow was a savior. It cleared the clog within 30 minutes without causing any harm to my pipes. A fantastic product!

  10. aptcommercialchemicals

    Our cafe had a major drain blockage, and APT’s Clear Flow Drain Unblocker Liquid saved us. It quickly cleared the toughest deposits, ensuring smooth drainage. Plus, it’s eco-friendly, aligning with our values.

  11. aptcommercialchemicals

    I’ve been using APT’s Clear Flow for years, and it’s never let me down. Recently, it resolved a kitchen sink blockage swiftly. Knowing it won’t harm my pipes is a huge relief.

  12. aptcommercialchemicals

    Running a bakery, grease is a constant challenge. APT’s Clear Flow Drain Unblocker Liquid is a lifesaver. It’s powerful, eco-friendly, and keeps our drains clear. A must-have for any kitchen.

  13. aptcommercialchemicals

    I recently had a blocked shower drain, and APT’s Clear Flow worked like a charm. It cleared the clog in under 30 minutes without any harm to my pipes. Highly recommended!

  14. aptcommercialchemicals

    We had a major drain problem at our hotel, but APT’s Clear Flow Drain Unblocker Liquid came to the rescue. It’s caustic-based and solvent-free, making it perfect for our business.

  15. aptcommercialchemicals

    As a homeowner, I trust APT’s Clear Flow for my drain issues. It’s easy to use and efficiently cleared a clog in my utility sink. Plus, it’s eco-friendly.

  16. aptcommercialchemicals

    Our restaurant’s kitchen drains often get blocked, but APT’s Clear Flow Drain Unblocker Liquid is a game-changer. It’s powerful and prevents future blockages. The peace of mind it offers is invaluable.

  17. aptcommercialchemicals

    I’ve used APT’s Clear Flow for years, and it never disappoints. Recently, it quickly cleared a bathroom sink blockage in under 30 minutes. The fact that it’s eco-friendly is a big plus.

  18. aptcommercialchemicals

    Running a cafe, we can’t afford drain issues. APT’s Clear Flow is our go-to drain unblocker. It’s eco-friendly and clears even the toughest deposits, ensuring our drainage system runs smoothly.

  19. aptcommercialchemicals

    My kitchen sink was completely blocked, and APT’s Clear Flow Drain Unblocker Liquid saved the day. In less than 30 minutes, it cleared the stubborn clog without harming my pipes. Truly impressive!

  20. aptcommercialchemicals

    Highly recommended and has saved me a fortune.

  21. aptcommercialchemicals

    brilliant product

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Contact us today via email sales@apt-icc.co.uk or free phone 0800 0723 773

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