The above is what comes in the box. But, the shown faucet & the PN-12 are an upgrade.
The T-part that came in the box that connects to the wall valve did not work, and needed an extra part (reducer).
Before the “J’ Trap (Here where the waste water needs to go)
Insert the colored tubes by pushing in & then pull out little to make sure they are snug into each appropriate location.
Red goes to the cold main water line.
White goes to the reservoir water tank (highly recommend draining your water tank monthly).
Yellow goes to the drain.
Blue run it behind the system housing to avoid clutter & into the bottom part of the PN-12.
Blue goes under the PN-12, and then from top of PN-12 to under the drinking faucet.