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2Kg Caustic Soda Drain Cleaners & Unblockers Powder Kitchen Sink & Drain Cleaner Effectively Clears Blocked Drains Also Use For Cleaning Pathways Driveways Exterior & Brickwork (2x 1Kg) : Amazon.co.uk: Grocery
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Can Sodium Hydroxide really do this? I have no adequate knowledge regarding plumbing, or chemistry for this matter. : r/Plumbing
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