Here's Mine guys. This is by far the best the investment I have made for my tanks, I actually look forward to doing water changes now.
It's a 75gpd RO/DI Mixing station. The greatest thing about this mix station is that I have the supply hooked up to my well and the waist drains to my basement sump. (Not an aquarium sump) were it pumps back out to my lawn. So I have really no waste water and all I have to pay for is the power to pump the water from the well and salt!
It's plumbed so that the left bin fills with RO/DI water, then I can transfer that to the other bin where I add the salt and mix it together by recirculation the water in the bin. Both bins can be isolated from each other and/or the pump. I also set it up so I can either gravity feed the water in to small buckets for top offs and such, or you can do a super fast W/C by pumping the water to the tank's sump with this hose I made; it uses a PVC union fitting to connect to the mixing station.
I installed 2 float switches as well; one that shuts off the RO/DI unit when the bins are fill and the other shuts off the power to the Blue Line pump when the water level gets too low.