R/O unit

[videoguy]

R/O unit Maxima 35 GPD. Just replaced all cartriges but can't find manual / remember what hose is waste water vs good water.
Right now I have all hoses going gown drain since I remember I have to rinse the new filters.
What hose is good blue or orange?
Thanks

 

[jakebtc]

waste water is orange comes out of the top long white horizontal cylinder

 

[videoguy]

Thank You.