The system's flow - fish room, tanks, support equipment - are powered by a hammer head pump ( I have a spare incase of emergency )
Closed loop for the 300DD is provided by (2) super dart gold hybirds, each running through
a set of 2 mocean3500's.
I did the flex pipe install in stages, with anything showing in the tank, plumbed with black flex pipe. Looking back, I should have done it all in black.
The overflow has (2) 2" bulk heads on the sides that internally go through the bottom of the tank as supply lines to the darts. The darts 1.5" feed lines to the tank go up behind the tank to the 4 mocean3500's
Supply is split into (2) 1" lines that feed the tank
The overflow also has (2) 1.5" bulk heads that are connected to the fish room
as drains to the sump.
here are a few pictures of the mess