What Do I need for a pet wash!

[carwashdata]

What is a part list for building a self serve dog wash. ( minus the control panel / plc .. etc ) I am mainly looking for everything that would hook into the plc. Solenoid valves / pumps / motors etc. I understand they are not complex and are typically simple parts.

Lets say I want to model a kleen-rite self serve dog wash. What motors / injectors /pumps / valves do I need ?

Thanks for you help!