[Member No. 1]

Originally Posted by ValhallaReef

I am working on the plumming plans for a new 160 gal (220 gal estimated total system), and I got the idea of having ONE pump do everything.

Basically it would be the return AND I would plum off the discarge to send needed water to all auxiliary systems. Reactors. Skimmer. Return. Refugium. Auto top off (would need a solenoid valve). Algee Scrubber.

All off one external return pump and gate valves to control the flow.

Has anyone ever seen this?
Anything I should consider? Or be concerned about?

Thank you so much!

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Very possible! People do it all the time.
You mentioned ATO. How would that work? An ATO replaces evaporated water with RODI water. The water from the return is tank water.

Look here.
https://www.google.com/search?q=retu...hrome&ie=UTF-8