Some holes for closed loop run from Sequence 10000 and oceans motions 4-way.
Lots of plumbing later. The plumbing is designed so that the flow alternates between the front two outlets and the reef-flush. This worked perfectly with the fw wet test however once sand was added the oceans motions continually seized up and took a while to fix.
Pipework boxed in with egg crate. I later had to resize the boxing and silicone the acrylic strips to the tank base to prevent sand getting in under the egg crate.
Tank cycling July 07 after adding about 55kg of live-rock and 2 bags of sugar sand.
Sump and plumbing whilst cycling. Sump has a fist full of cheato and 2 jars of mineral mud.