Walex Commando black holding tank cleaner.

Experiencing false readings from your sensors, or a continuous odor  from your black holding tank? If so, you most likely have residual waste buildup on your holding tank interior walls and level sensors. Using  Commando^® Black Holding Tank Cleaner will remove the odors  and sensor buildup 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 buildup in your black holding tank. Continued use of Commando every 3 months will  help keep your tank in good working condition.

Treats your black holding tank system with an all-natural enzyme cleaning treatment in as little as 12 – 24 hours!

• Lubricates valves and seals
• Easy to use dissolvable packet
• Septic tank safe
• Formaldehyde-free
• Biocide-Free
• Zinc and Copper Free