I've been slowly gathering parts and equipment a little while now and just started to put things together. I'm working on getting everything as close to automatic as possible using the apex controller for quite a bit. I am hoping for 35 gallons of ready saltwater and 12 gallons of RO/DI. Below is a rough idea of what I have planned. A few things I'd like to add down the road would be: 1) I'd like to see about getting some sort of bin that I can mount in the attic and fill with salt. Have that come through the ceiling and then pull a handle and the pre-measured salt would fall right into the brute. No more having to measure a cup at a time. 2) Auto water change out. Done though the DOS from apex but I need to do a little more research before I take that big plunge.