How frequently must backflow prevention devices be tested according to Michigan regulations?

Backflow prevention devices are critical in maintaining safe drinking water by preventing contaminants from entering the potable water supply. In Michigan, regulations specify that these devices must be tested annually to ensure their proper functioning. Regular testing is essential because it helps to identify any failures or issues that could compromise water safety.

Testing annually ensures that the devices are in optimal condition and compliant with public health standards. While some jurisdictions may specify more frequent testing depending on the device's usage or location, the baseline requirement in Michigan is set at once per year. Therefore, annual testing is the correct frequency in accordance with state regulations governing water safety and public health.