Boots Caustic Soda - 500g

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Product description

Boots Caustic Soda drain cleaner can be used to clear blocked waste pipes and drains.

How to Use

How to use: Always read full product information before use.

  1. Open container carefully, keeping it upright, on a firm flat surface.
  2. Gradually add half the contents of the pack to 1.25 litres of cold water in a plastic bucket and stir well with a wooden stick until caustic soda is dissolved (this process will generate heat and must be carried out with care). Replace cap immediately.
  3. Slowly pour the solution, which will now be warm, down the pipe or drain.
  4. Leave for 20 minutes and then flush with hot water.
  5. Repeat the process as necessary.
  6. If blockage remains call professional help and show product label.

Hazards and Cautions

Use in a well ventilated area and only as recommended. Wear suitable gloves and eye/face protection. Avoid any contact with skin or clothing. If any contact takes place, remove any contaminated clothing and wash skin immediately with running water for 10 - 15minutes. Causes severe burns. Keep out of reach of children. Wear suitable gloves and eye/face protection.

Caution: Always add caustic soda to cold water, not water to caustic soda.


Caustic soda (sodium hydroxide 98% w/w)

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Boots Caustic Soda - 500g


5.0 out of 5 based on 4 user reviews Laundry

£2.50 or 250 points

500 G £0.50 per 100G


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Boots Caustic Soda - 500g 5 5 4 4
Use this before calling the plumber My shower was draining so slowly that I spent most of the time sloshing around in 5cm deep water. After trying a few things I was convinced we'd have to get the plumber in but came across this. Easy to use, works like a charm. You'll use up nearly half the bottle in one go so I ordered two bottles - got a supply for next time something similar happens. 26 January 2015
Very Effective Removed all animals from where I was working I wore protective goggles, good gloves and clothing and this was very effective. Drain and a blocked plug hole now clear. Very cost efficient and worked well. 10 March 2016
the best for unclogging bath waste I used many solutions to unclog bath drains but none worked then I bought this caustic soda and Poured a little bit into bath waste then poured a kettle of hot water. left it a couple of minutes then the drain was unblocked. great price, excellent solution. 24 March 2016
  • 2016-10-21 T08:23:04.657-05:00
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Boots Caustic Soda drain cleaner can be used to clear blocked waste pipes and drains.

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