Backflow Preventer Testing
 
  • The backflow preventer for a sprinkler system prevents the water that enters the sprinkler system, which could be contaminated with pesticides, from re-entering your drinking water.
  • This backflow preventer should be tested yearly to make sure that it is working properly. 
  • We are licensed by the New England Water Works Association and the State of New Jersey to test and inspect backflow preventers.

Watts, http://www.watts.com/backflowprevention