RO System Control Interface

I need a control system for an RO (Reverse Osmosis) water filtration setup. The system should manage a water pump, measure the depth of water in a tank, and integrate inline TDS meters (total dissolved solids) before and after the membrane filtration.

Key Requirements:
- Control water pump: automate and manually switch on/off
- Measure and display water depth, TDS levels, and pump status on a color screen
- Auto and manual override settings
- Combination of touchscreen and physical buttons for interface
- Enclosed in a protective box

Ideal Skills & Experience:
- Experience in designing control systems
- Proficient with electronic interfaces (touchscreen and buttons)
- Knowledge in water filtration systems and TDS meters
- Ability to create user-friendly display layouts

Looking forward to your proposals!