I haven’t added a AWC system yet. My mixing Station currently includes an AquaFX Octopus 6-stage, 200 GPD RODI with booster pump, auto flush, and a 1.5 cu ft carbon tower as well as (2) 65g Norwesco containers, Varios 6 pump, Hydros Control X2, and Hydros Control XS (with 2 solenoids, 2 water sensors, 2 dual TDS meters, leak detector, and temp). It is plumbed directly into the main house water line and is configured so that when the RO drops to the low water sensor, it will automatically flush the RODI and fill to the top water sensor with a safety mechanical float valve. The four TDS sensors are after each of the various types of filtration in the RODI so I can monitor the performance of each filter individually. My next upgrade will probably be digitally testing salinity continuously. I realize this approach isn’t for everyone and maybe overkill for many - I share this info so you can get a sense of what is possible.