The Basement SumpSince water changes are annoying to do in a enclosed area, like under a tank. I figured i'd move my sump, and all the filtration, a little farther downwards, like the basement.
The basement sump area is divided into 3 sections. The live rock and algae fuge, the frag tank, and the water change tank.
The FugeUsing my old 30 gallon tank, I put 4 holes in it 2 drains and 2 returns. 1 hole is the to drain to send water from the fuge into the frag tank. The second hole (lower in the tank) is to drain old water out of the system into the sewer as well as work as a drain for a closed loop to circulate the water using one of the returns.
The second return is to pump in freshly mixed salt water from one of the 10 gallon mixing tanks.

Now in this tank I will keep 2 main staples of the coral reef biological filtration, live rock and macro algae. Each will work biologically to keep the water free of ammonia, phosphates, nitrites, and nitrates.
Water will drain from my display tank and flow through the floor/walls into this tank first
This tank will have basic lighting over it to keep the algae alive. There will also be 1-2 fish as well as snails and crabs.
Water Change TanksI have two 10 gallon tanks i will be using to mix salt water and add into the system using a pump.

pictured here is the empty frag tank. Behind it you can see the WC tank.
Since i don't want any algae or cycling on accident in the WC tanks, they will most likely go underneath the table.
The Frag TankFrag: as in fragment.
A frag in the aquarium world is a small piece of coral cut off of a larger group or colony.
Fragging is the act of cutting your coral apart and growing each small piece into its own colony.
The frag tank i am setting up will be to do this with my own coral. This will give me the chance to multiply my coral much faster, as well as the ability to sell or trade to other reefers.
The tank is made out of a 55 gallon tank and set up with baffles to stop bubbles from reaching my display tank. The frag tank is illuminated by two Ecoxotic Par 38 LED bulbs with roughly the same 20k color temperature as my display tank.
These lights will be on the same schedule as the 30 gallon tank. There will also be 2 tiers of shelving to sit corals on. Different height shelving will allow for different amounts of light penetration in the water. The frag tank will probably house 1-2 small fish.

(picture taken while wet testing)