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Liquid drain Unblocker (Sodium hydroxide)

Liquid drain unblocker, perfect for clearing clogged drains. Easy to use and made from environmentally friendly ingredients. The unblocker is ready-to-use and does not need to be diluted.

 2,95 29,99


Unclogging becomes a piece of cake with DutchChems Liquid Unblocker. Our ready-to-use formula has been specially developed to quickly dissolve blockages without fizzing or splashing. This makes it safe and easy to use, and – unlike some granular products – there is no risk of the blockage being made worse by product build-up.

For stubborn blockages, particularly suitable for kitchen and bathroom drains, our 1 liter bottle is ready to tackle any problem. And because we have prepared the unblocker ready-made, it does not need to be diluted again to be effective.

Instructions for use DutchChems Liquid drain Unblocker (1L)

  1. Carefully pour 500 ml of our liquid drain unblocker into the clogged drain.
  2. Allow the product to work for 5 to 30 minutes, depending on the severity of the blockage.
  3. Rinse thoroughly with cold water.
  4. For very stubborn blockages: fill the drain or sink with warm water and then add 500 ml unblocker. Leave this overnight and rinse with warm water the next day.

Take care to avoid contact with the skin and keep the bottle out of the reach of children.

Health and Safety


GHS symbol for corrosive.

Hazard statements (H phrases)

  • H314: Causes severe skin burns and eye damage.

Precautionary measures (P-phrases)

  • P280: Wear protective gloves/protective clothing/eye protection/face protection.
  • P301+P330+P331: IF SWALLOWED: rinse mouth. DO NOT induce vomiting.
  • P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. remove contact lenses, if possible; keep rinsing.
  • P310: Immediately call a poison control center or doctor


  • Can I use DutchChems Liquid drain Unblocker for all types of drains?
    • Yes, but be careful when disposing of metal because our unblocker contains sodium hydroxide . This substance can react with certain metals. For non-metallic drains such as those made of PVC, it is safe to use.
  • Is liquid drain unblocker safe for septic tanks?
    • Yes it can be used safely for septic tanks.
  • What should I do if the blockage persists after treatment?
    • Repeat the treatment or let the product work longer. If this does not work, you can also pour sodium hydroxide granules down the drain.

Where can I buy liquid drain unblocker?

We offer Liquid drain Unblocker in handy, high-quality 1 liter bottles. Our unblocker is distinguished by the use of only natural ingredients that do not harm the environment. This environmentally friendly composition makes our unblocker not only safer, but also exceptionally effective. Place your order easily via our webshop; after which we will carefully pack and send it for you.

Volume (L)

1,0 L, 4x 1 liter, Box, 12x 1,0 L


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