my 104.72G Shallow Lagoon

[kien]

Okay, so here we go! Finally got around to putting it all together. Here's what the guts look like.



33g two chamber sump. Return on the left, skimmer on the right. Herbie overflows with 2 1/2" drains. Return is driven by a mag 12 into 1" pipes. Skimmer is the awesome Hydro 700.





Here's a shot of the overflow box with the herbie overflows. At the opposite end is the return. The third pipe in the overflow box is currently blocked off. I was going to use it for a return as well but decided against it (for now).







Aerial shot.



So all that's left to do is wait for the PVC cement to cure, then tomorrow night hang my lights. Push the whole setup into its corner and we're off to the races!

[Delphinus]

Sweeeet!

[DCDN]

I can't wait to see it filled

[JDigital]

Aren't you worried about a back syphon on your return if the power goes out? That 90 elbow looks pretty low, unless your sump can handle the extra water. Just curious.

Setup looks killer though. Love the dimensions.

[kien]

Originally Posted by JDigital

Aren't you worried about a back syphon on your return if the power goes out? That 90 elbow looks pretty low, unless your sump can handle the extra water. Just curious.

Setup looks killer though. Love the dimensions.

It looks low because the tank is so frakking shallow LOL.

That return outlet is only an 3/4 to 1 inch below the water line. I measured :-). So not that much water is going to siphon back. The sump is only half full (possibly even less) during normal operations so ya there is lots of room for water in the sump. I always design my systems this way. Pretty much the exact same deal as my 150g. I actually use this to my advantage when doing water changes. I turn off the return and let all the water drain and siphon into the sump that can and will. This fills up the sump tank. I then just pump out all the water from
the sump tank and refill to the previous line with NSW. Turn pump back on. Done :-)