Entering any Commercial or non-residential building you must have a correct backflow preventer
before making any connections. You also must have a backflow preventer for any sprinkler system that is connected to the water line to prevent cross connection. The city of Albuquerque
requires yearly certificates of testing and maintaining your backflow devices to prevent cross- contamination in your water. We have been testing and certifying backflows since1992, which is the time that it was adopted in our code.
We have several certified backflow testers currently working at Donner P&H. We can test any backflow whether it's a residential house, a commercial building, a school, or any other facility or building. Our Certified backflow testers are well trained, well equipped to get the job done, and willing to help with any problem you may have.