Review on Powerful and Efficient: 3X:Chemistry 139 99030 nuGen Advanced Holding Tank Cleaner - 20 oz. by Gopal Baltimore

This product works best for deodorizing a black tank but not very good for cleaning level sensors like it should. I will. A tank of 30 liters. I have used the product as intended. 3 times and even went so far as to add 15 gallons of the appropriate amount of product and drive 400 miles to the nearest campground. He forced the sensor to turn off completely when the tank was empty, but sensors 1/3 and 2/3 are still on when the tank is empty. I'll try a few more times, but I'm not holding my breath.