Tank & Sump
Here is an overview of the entire operating system.
All of the lights are on timers (the sump and display lights are scheduled opposite of one another).
The lights on the display tank are, also, timed to light gradually, simulating dawn and dusk.
A UPS backup system is used for the pumps, only, in case of a power outage.
The mag drive pump pumps the water to 4 valves,
one operates the perforated supply line that runs along the back wall of the tank,
two operate 2 different waterfalls in the tank and the 4th is for a "Rain Bar" in the hood over the land area.
I use the rain bar for water changes, just open the valve, rain on the land area, then refill the sump.
The valved line in the left rear corner under the tank (in the cabinet) is a drain for the land side.
It allows me to drain the land side to prevent the substraight from becoming water logged.