I see no outputs from either instrument that can be interfaced with a processor. How do you plan to import the data into a program running on an Arduino?
To get some ideas for measuring PH and ORP with an Arduino, Google "measure PH arduino" and
"measure ORP arduino".
To control a pump you will need a motor driver compatible with the motor and a power supply appropriate for the motor. Arduino cannot drive a motor. Arduino can control a motor through a driver. Post specifications of the pump (rated voltage and stall current at a minimum) and we can help with the driver and supply.
How do you access the voltage? Do you have a circuit schematic that shows where to pick up the voltage?
Is that 1A loaded running current, 1A unloaded current or 1A stall current (which I doubt). You need to know the stall current. You need to know the motor type. Is it a brushed motor, brushless motor, stepper motor. Like I said, a specification or data sheet is what is needed.