Housold 375g Caustic Soda Drain Cleaner Powder- Prevent Clogs and Blockages | Effectively Removes Blockages, Cleaner for Blocked Drain Pipes in Sinks, Shower Traps (Pack of 2)

Great for cleaning and unblocking sink/ bathroom pipes. Does an amazing job but be sure to read the instructions and follow according. Ease of use.

The original solution for a blocked drain. The outside drain for the rainwater was clogged with leaves and dirt for a good two years, and very slow as a result. Only this was able to persuade movement. Hazardous but effective. ALWAYS WEAR RUBBER GLOVES WHEN USING.

Well packaged, worked well

Brilliant stuff

Brilliant

This stuff, bubbled up and I was hopeful it would clear the blockage in my shower drain, I followed the instructions to the letter. Initially cleared the drain but then the blockage was worse than ever, and water was pouring through my ceiling and light fittings downstairs, so I had to concede and call out a plumber. He removed the shower trap and showed me the issue. The soda crystals had sat in the bottom of the trap and gone hard like concrete, which had completely blocked the pipe. So I had to have a complete new drain and trap (expensive) *update - asked another professional, he said this can happen when you have other chemicals in the drain, such as other household cleaners etc…. That react with the product. I wasn’t aware that anything was in the drain already and certainly didn’t know this would happen. Will not be using drain cleaners again.

Not as good and strong as other ones

Really impressive, had a bad blocked sink, tried Mr Muscle and that didn't really work. But this stuff was amazing. Will have to get some more just in case.