Why do I have dirty water, and if I have dirty water, what should I do?

Some areas have secondary water systems, pump systems or backyard wells to supply water to sprinkler systems. Invariably, these water sources have a lot of debris, sand, moss, seashells and other contaminants in the water which are not trapped by the inlet screen. These particles act as miniature drills and damage valves, fittings and heads during sprinkler operation. To eliminate most of these problems, Rain Bird recommends installing a filter on the mainline. There are a variety of types, but we recommend a "Wye" or "Tee" filter that can be easily accessed and cleaned. Look for a stainless steel filter if your water is particularly grimy. Be sure to search for a filter that will handle enough water flow.