Resinous changes lifeBleach colophony of Lai spy A870 to be in safeguard and 3-5 can be used below operation standard year. In fact, its service life gets the influence of a lot of elements. For example, the water quality that drink water has very big effect to resinous service life. The impurity that drink water is more, colophony working load is bigger, change time is shorter. In fact, great majority floats come special colophony needs to be in 2-3 changes inside year. The circumstance that need changes has as follows: 1. Below direct circumstance, bleach colophony of Lai spy A870 to whether need to change through checking water quality to judge. For example, second birth water quality still does not accord with use standard, or water quantity decreases significantly, show colophony needs to change. 2. When the pressure that when resinous use pressure provides more than is worth, or exorbitant temperature may bring about resinous broken and be out of shape. If colophony grain is broken overmuch, cannot use resin, need changes new colophony. 3. In use process, if bleach color of resinous of Lai spy A870 deeper, or scarlet and brown or black, colophony may be polluted badly, because this answers,consider second birth or change. Resinous second birth principleWhen the calcium that replaces certain amount in water when soft water colophony, magnesium and other hardness ion, water cannot again bate. Right now, soft water machine needs second birth colophony, pollute the second birth method after colophony is calcic namely. 1. When strong cation of second birth of use Na solution exchanges colophony, should use method of the second birth that divide a pace. Because the Ca2+ concentration from the desorption in colophony is right now higher, but Na chroma is inferior, although form a few Ca2+Na precipitation, also can be swept by solution. Na chroma increases gradually. Right now, the Ca2+ chroma from the desorption in colophony is inferior, won't form Na precipitation. 2. Because colophony of weak cation exchange is,exchange reborn of waste liquid of resinous second birth through strong cation. Accordingly, weak cation is exchanged implement must enter dilution water, the quantity that drink water must not be exchanged more than implement enter acerbity mouth. In addition, although adjusted acerbity chroma, also should notice to observe weak cation is exchanged implement the color of discharged second birth waste liquid. 3. After acidification, ion exchange implement water displacement must be entered to clean instantly after filter is clear, strong cation is exchanged implement must enter purificatory water displacement to clean instantly. 4. Because temperature of liquid of winter second birth is low, calcic pollution is more incidental. Accordingly, before second birth, weak cation is exchanged implement must undertake swab and be washinged instead, weak cation is exchanged implement must exchange with strong cation implement the conduit of second birth waste liquid between undertakes turning over washing, with avoiding occurrence problem. This one process is in family expenses soft water implement in need 2-3 hour, call soft water normally implement be washed instead and second birth. According to soft water implement model, agent of colophony second birth needs the dose of colophony second birth of certain amount.