Pipe Protect's special formula makes use of purely natural microbes to breakdown deposits, so it's Secure for your surroundings. When applied as directed on a monthly basis, build-up can be prevented for as much as 30 days. Pipe Protect® is available only from Roto-Rooter locations. Algal Blooms: Nutrient overloads from https://www.septic-tank-servicing.com/category/faq/