OXI Boost is used to run the Oxidiser only to give the pool an extra boost when under heavy use or there has been some extreme weather such as thunderstorms, high wind and dust or other environmental factors.
ION Boost is used to increase copper levels in the pool. Copper levels can reduce due to dilution through rain or backwashing, splash out or environmental factors such as phosphates in the pool water.
NOTE: ION BOOST will only operate for a set period of time each day based on the pool size and resets every 24 hours, so depending on the pool size this may take a number of days. If an external controller is installed and ION BOOST is activated the same rule applies.