Backflow is the reversal of the flow of liquids, suspended solids, etc. into the potable (drinking) water supply, with the points at which the potable water system connects with a non-potable water system called ‘cross connections’. There are many cross connections in the average home, including dishwashers and washing machines, with these appliances featuring devices which are designed to prevent backflow from occurring. To ensure they prevent backflow, these backflow devices must be installed correctly and properly serviced by a certified plumber.
Backflow prevention is an aspect of commercial and residential plumbing systems that many home and business owners overlook. Nevertheless, these devices are important components of any plumbing system and all backflow prevention devices need to be properly installed and maintained to ensure they’re working properly and protect your drinkable water supplies from contamination or pollution caused by backflow.