Review on Velleman K8055 Experiment Interface Board by Kyle Rodman

This is a well designed circuit board, we have potable water full of red iron here, I built a water filtration plant to remove iron and it has a main pump and 2 valves and 4 water level sensors, with this board and a windows computer it will run a water treatment plant and keep us clean usable water since 2004, this is board number 4, I would like spares just in case, this is a new board, the one running raspberry Pi 3 is connected to perform water treatment.