The Kitchen Drain Unblockerfrom Ecozone uses biologically active enzymes which get to work on any build-up of grease, fat & organic matter which may be blocking your kitchen sink. Rather than using harsh, caustic chemicals such as sodium hydroxide, the complex blend of enzymes work to give you a free flowing, freshly smelling drain. The non-toxic formulation is not harmful to yourself or the environment, so you can unblock your drains safely & guilt free. Citrus fragrance Unblocks drains Helps removes grease & fat Helps remove blockages Regular use helps to keep drains clear & fresh Kind to sewers & water treatment facilities Septic tank safe Vegan How To Use 1) Shake well to activate solution 2) Flush the drain with 1 L of hot water 3) Following up with pouring 14; (250 ml) of the bottle of drain unblocker down the plughole 4) Leave overnight (no less than 8 hours), then flush through with 1 L of hot water to clear 5) Repeat treatment if necessary Once drain is cleared from blockages, follow up with a preventative dose every 3 months & use our enzymatic drain cleaning sticks for monthly maintenance. Disclaimer: For tough blockages, leave the solution in the drain for up to 24 hours. Ecozone Kitchen Drain Unblocker 1L is part of the range of Ecozone household speciality cleaning products. Find affordable, eco-friendly cleaning products to tackle every part of your home, from descale & limescale removers to drain cleaners. Rid your home of dirt & bacteria & make it an Eco-zone. Shop the full range of popular Ecozone products, including Ecozone dishwashing products & Ecozone microfibre cleaning cloths, available from Big Green Smile.