Using Commando Black Holding Tank Cleaner will remove the odours and sensor build up in as little as 12 hours. The super-concentrated, scientifically developed formula is filled with natural enzymes to penetrate the walls and sensors to break down waste and paper build up in your black holding tank. Continued use of Commando every 3 months will help keep your tank in good working condition.
Benefits & Features
Pack of 4 Commando Black Tank Cleaning Drop-Ins
Removes residual waste build up and odours in as little as 12 hours
Super-concentrated, scientifically developed formula with natural enzymes to penetrate and break down waste and paper build-up
Lubricates valves and seals
Easy to use dissolvable packet
Septic Tank Safe
Empty black holding tank and close valve. Drop in one Commando packet into toilet and flush. Fill holding tank with water until sensors are completely covered. Let product sit in tank for 12 to 24 hours. One Commando packet will treat a holding tank capacity up to 189 litres. Driving the vehicle to agitate tank can help speed up the process, but not required.