When water enters your restaurant from the main water supply, it should only ever flow IN. However, sometimes a pressure change in the line can occur from a water main break, power outage, or an open fire hydrant, leaving the potential for water to flow backward and seep into the main water supply line. When your backflow device is working, it stops this from happening. If it stops working and there is a pressure change, the backflow of water could lead to:

Check valve

After replacing the tempering valve the warm water temperature will need to be checked to ensure correct operation. A reading of 48oC +/- 1.5oC should be obtained at the NEAREST warm water tap. NOTE: The reading obtained must be less than 50oC as required in AS 3500.4 clause 1.9.2.

Backwater valve

When you run a busy restaurant, there are a few general backflow problem indicators to watch for, including cloudy, muddy, or strange looking/smelling/tasting water. Also, less water pressure and/or an illness outbreak can be an indication there is a backflow preventer problem.

FEBCO

A quantity of hot water will discharge from the tank during this process. Personal Protective Equipment should be worn to prevent the risk of scalding.

According to the Certified Commercial Property Inspectors Association (CCPIA), the EPA holds each municipality accountable for its own water purity, therefore commercial backflow preventer testing requirements may differ slightly by region, however, typical inspection requirements include the following:

When it comes to inspections, it is important for you to know that a licensed fire protection sprinkler technician can legally inspect your backflow preventers, but a backflow technician cannot, by code, inspect your sprinkler system. Therefore, you can save time and money by hiring AIE’s sprinkler inspector to also inspect your backflow preventers while performing your annual certification.

WattsBackflow preventer

Backflow preventer issues can be subtle yet dangerous, so be sure to make this critically important inspection protocol part of your overall plan. If you’re not sure who to call to locate, inspect, and/or repair your restaurant’s backflow prevention devices, AIE is at your service. We offer all fire safety services to nationwide multi-location restaurants and 24/7/365 in-house emergency assistance. Contact us today, 800-892-9863.

Now that you know how vital your restaurant backflow preventer and cross-connection devices are to the safety of your customers, staff, and business, you can see why AIE recommends that inspections occur more often than once a year. When you work with a company that provides all fire and water services, it is convenient to test them along with your other regularly scheduled NFPA fire protection and safety inspections.

Sometimes the signs of a broken backflow preventer are not obvious but can still cause prolonged bouts of chronic illness, which is why regular inspections by a certified backflow preventer technician are critical to the health of your customers, staff, and restaurant.

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