Stagnant water in rooftop plastic and concrete tanks is the #1 source of household bacteria, slimy biofilm, and algae. Our effervescent NaDCC tablets sanitize entire tank volumes without scrubbing, clumping, or corrosive chalk.
Municipal supply loses residual chlorine within 12 hours of sitting in warm rooftop tanks.
Bacteria adhere to tank walls, forming microscopic slimy biofilms that resist basic flushing. This biofilm shelters amoeba, pseudomonas, and coliforms that contaminate bath and kitchen water.
Traditional bleaching powder contains up to 70% calcium carbonate filler. It deposits white chalk sludge at the bottom of the tank, blocks plumbing valves, and causes severe eye and skin burning.
Simply drop an effervescent NaDCC tablet into the tank hatch. It automatically dissolves in under 3 minutes, spreads evenly throughout the water without stirring, and leaves zero chalk sludge.