Do not use in kitchen waste disposal units or in connection to a septic tank. Rapidly dissolves fats, grease and hair to clear blockages A sodium hydroxide solution specially designed to clear fat, grease and hair in kitchen sinks, baths and shower waste fittings/pipework.Where kitchen... Apply the sodium hydroxide solution to the blockage. Where kitchen waste disposal units are fitted or connection to a septic tank, use knockout biological drain treatment. How to Unblock a Bathroom Sink Drain | Topline | Irish Owned Since 1887 Knock out Sinks, Showers and Baths Unblocker is a Sodium hydroxide solution specially designed to clear fat, grease and hair in kitchen sinks, baths and showers. Ready to use formulation. Please read product warnings (see images) before purchase. Size: 500ml Allow the solution to clear the fat, grease, and hair. Safety Warning Keep out of reach of children. Fast acting caustic liquid for easy application and correct strength dosing Bathroom Unblocker Heavy Duty Knockout Bath, Sink And Shower Unblocker 500ml 500ml Drain Treatment Ideal to speed up slow draining plug holes and as a general maintenance to keep drains open
