Backflow Prevention devices prevent contaminated water or chemicals from flowing back into the public drinking water supply. Help to protect yourself, your family and your customers with backflow devices. Both residential and industrial quality backflow preventers are offered in an array of configurations that will take care of your heavy duty and commercial needs, helping protect your water supply from the risk of contamination. ABC Fire and Safety has qualified Backflow Prevention technicians who are highly trained in installation, testing, maintenance and repair. ABC Fire and Safety will make sure that your Backflow Prevention meets all mandatory local standards and regulations.