How Does One Know When the Emitter is “Used Up”?
There are several ways to determine if an emitter is still useful, but they are so costly that we recommend automatically replacing the emitter once every two years. The emitter should replaced more frequently than this if the conditions are severe or there is significant leakage or loss of the internal air through frequent opening and closing. If there are signs of corrosion beginning on the product, it is most likely that the VpCIs in the emitter have been depleted.
