Burlington Plumbing & Heating ServicesThrough Sept. 21st we are offering a 15% discount on all repair kits. Take advantage of this offer and be prepared for when the device leaks or fails the town’s annual test. Order a spare backup kit to receive an additional 5% discount totaling to 20% off the two repair kits. And remember as per the State of Massachusetts it is required that a spare kit be present with each backflow device.