or may include a combination of two way valves the plating pump 265 is used to recycle the solution through the plating arrangement 210 the amount of time that the solution is recycled depends upon the desired amount of copper plating that is desired and can he determined as a function of the wet chemical process and the amount of copper that is in the solution after the solution has been sufficiently purified the valves 271 and 272 are opened and the solution returns to the filter arrangement 260 and is delivered back to the wet chemical bath in another example embodiment the purification system may include a programmable controller such as a computer adapted to control the function of the system for example a programmable controller can be programmed to turn on a pump to the purification system deliver solution to the system and activate the power supply to the anode and cathode arrangement when a separate plating loop is controlled or when a recycle loop is controlled the controller is also coupled to control other functions of the process such as the operation of the plating pump 265 and the valve arrangements 271 and 272 the programmable controller can also be used to control the amount of time that the solution is passed through the recycling loop such control of the recycling time can be pre programmed into the controller or can be a function.