Standard practice is to dose a system once a day, introducing MEXEL 432 into the water inlet with a metering pump for as long as it takes to inject the daily dosage, i.e., to produce a concentration of 1 to 4 ppm in the system. Under these conditions the product will not be present in the effluent in detectable concentrations.
Use a metering pump near a water inlet to pump the product into a small line that extends down to the inlet area of the main waterline, where it is dispersed into the inlet water stream. The metering pump may be interlocked with the main water pumps to eliminate the possibility of the product entering the environment in the event of reduced water flow. Inject product as near as possible to the inlet in order to protect as much of the inlet piping as possible.