Can I leave Commando in my tank for longer than 24 hours?

Some of the most common questions we receive have to do with how long to leave Commando in the black holding tank.

If you don’t leave it in the tank long enough, the enzymes won’t have time to work thoroughly, but people also worry about leaving it in for too long. The short answer is that you should aim to leave Commando in the tank for a minimum of 12 to 24 hours, but there’s no real harm in leaving it longer.

Commando is a pre-portioned product designed to work in as little as 12 to 24 hours for those in a hurry. However, if you need to leave Commando in your holding tank for 48 hours, 72 hours, or even a week, that would be okay and will not harm your holding tank. Each packet contains enzymes that immediately go to work, breaking down waste and paper and penetrating build-up on your tank walls and sensors.

Walex chemists designed the super-concentrated formula to work quickly to eliminate the most robust waste and paper build-up. Although it’s rare to have build-up after using Commando, when used according to instructions, if you continue to have issues due to extreme build-up, you can repeat the process.

If you have further questions about Commando or any other products, call us at 800-338-3155, and we’d be happy to help.