Why does NMG reduce erosion and runoff?
When the NMG valve engages and stops the flow of water from a broken sprinkler, it ensures that no erosion will occur as a result of the break. With no water flowing from the break, no unnatural erosion will occur in the area and no runoff will flow from the area. An eroded hillside or other landscape feature can cost many thousands of dollars to repair each time a landscape irrigation system breaks. Even relatively minor erosion can be costly to repair. If you repair your broken irrigation system with anything other than NMG, you are ensuring that you will incur the costs involved in that repair again next time the system breaks. When erosion occurs and damages your landscape features, the sediment that is eroded gets carried downstream by the water. This runoff can carry fertilizers and other soil treatments off of your property and into storm water treatment systems. Excessive runoff contributes to storm drain silting and non-point source pollution, both of which are expensive to re
