Pressure Plumber � sink, bath and drain clearer. The perfect solution for unblocking slow moving sinks, baths and drains. Easy to use product that clears obstructions caused by hair, soap build-up, and fat in seconds. Pressure Plumber works by using a controlled amount of pressure. Quick, and safe. No harsh chemicals to worry about. Harmless to sound plumbing. Can be used with septic systems. Supplied in a 150ml can.