No issues with noise or drainage?I just did this. Rinse the new tank thoroughly. I used silicone tubing for my plumbing after reading others issues with elevated tin in the cheap Amazon vinyl, and a thread soaking vinyl in RODI and ICP came back with big tin.
I just Td off one of my returns, no manifold but same concept. Hassle free as long as your return has enough oomf and electric has enough residual amps to run the lights and pumps.
Be meticulous about potential contaminants I almost lost alot.
This is what I was thinking of doing. Not sure why other than a space for more corals I guess.