Quantity   Component name
3 × Micropump One per chemical and one for sample/flushing
2 × ATmega328p Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × 315MHz RF pair To connect Pool unit to Base unit
1 × L293DNE Quad half H-bridge with protection diodes
1 × 74HC04 Electronic Components / Misc. Electronic Components
1 × Solar panel Environmentally friendly
1 × LiPo battery For a cloudy day (or larger current draws)
1 × LiPo charge circuit To make use of that expensive solar panel
1 × Pool Noodle To float this baby