PLUMBING Featured Bathroom Remodel Water Heaters Garbage Disposals Water & Gas Repiping Toilet/Faucet Replacement & Repair Certified Backflow Checks Sewer & Drain Specialists Trenchless Sewer & Drain Replacement Video Camera Sewer Inspection Slab Leaks HEATING SERVICES Radiant Floors Heating Appliances Boilers & Maintanence Aire Serv of Sonoma County Certified Backflow Checks MAPLEService is certified for testing back-flow prevention devices. Certification Card Number: 07388 Many commercial and medical properties require a back-flow prevention device/valve where the domestic water enters the building. This is to prevent contamination from possible siphoning that can occur into a domestic water source from the private property. Some area water districts require that the back-flow prevention devices be check annually or periodically from a certified back-flow tester. Back to the top of the page • Main page • Home • E-mail Us Content from this site may not be reused without permission.