sump design

[sphelps]

Personally I think it all looks pretty damn good as is. The extra volume and rock will add little to no benefit, if you don't require the top off space why not use for water changes?

[rocksteveo]

im still gonna need top off,im making another chamber to slide in the left side(approx 7gals), im not really wanting to add more rock for filtration but remove rock from display to open it up abit so the tanks isnt packed with rock(more room for fish to cruise around)

[sphelps]

Well the easiest way to get water in the chamber is either to tee off your return or main Herbie drain. To avoid stealing flow from the return I'd probably go with the drain. A reducing tee installed some where before the gate valve running 1/2" line to the new chamber. 1/2" ball valve for control and you're done. You'll have set the chamber flow rate first with the ball valve then adjust the gate valve after. I can't tell if any mods are needed to get water out of the chamber or if it will just overflow into the rest of the sump as is.

[rocksteveo]

thats perfect thanks alot

[e46er]

That is the cleanest sump ive ever seen