If you are careful with dangerous chemicals and want the best value for money, buy it. If you have expensive plumbing, children, or a poor sense of balance, spend the extra £2 on a bottle with a child-safe cap and fume suppressant.
Following the instructions (pour slowly down a dry drain, wait 15-30 minutes, flush with hot water), the immediate reaction was concerning. Within 30 seconds, a plume of acrid, chlorine-like fumes rose from the plughole. While all caustic drain cleaners smell, the Sainsbury’s variant was notably aggressive. Verdict: Open a window and leave the room. sainsbury drain unblocker
After 20 minutes, a kettle of boiling water was poured down. The result was a satisfying “glug-glug” as the water vanished immediately. The slow drain was cured in a single application. If you are careful with dangerous chemicals and
Never mix Sainsbury’s Drain Unblocker with vinegar, bleach (other than what’s inside), or other cleaners. Doing so creates toxic chloramine gas. Always wear rubber gloves and eye protection. Product prices and formulations correct as of [Current Date]. Always read the label before use. Within 30 seconds, a plume of acrid, chlorine-like