Plumbing Drainage Issue

[TK_KW]

#reefsquad

So I'm adding a frag system to my display. I've plumbed it to gravity feed, which doesn't seem to have worked, and I'm assuming I need to go with maybe a modified in tank bean animal or something to get a full sypion?

This tank was a after though, so bare with me. The horizontal drains had to be tied together as shown due to bench work constraints.

I have a total of 4.5" of fall i can work with.

Total horizontal run is about 11' back to my sump, with a bunch of 45s.

Gravity feed doesn't work. Acts as though its air locked. So I cut a T in on its back, right after the bulkheads to admit air in, creating a vent. Didn't help at all.

Suggestions for drainage? Do I need to somehow creat a full siphon? And how would I achieve that?

Thanks

 

[Ron Reefman]

I'd like to help, but I don't quite understand what you have there, and the drawing looks like it's only half done.

Is the frag tank below (as in under) the DT?
The frag tank gets water from the DT by gravity?
Is the sump below (as in lower than) the frag tank? By how much?
And the run from the frag tank to the sump is 11 feet horizontally?

 

[ChrisQ0904]

Is it possible to run the two drains separately instead of together?

 

[Hendrix]

If your placement height are correct, you wouldn't need to create a siphon. It would just naturally overflow and drain (unless drain is clogged). If it needs to create a siphon because the water has to go higher than its current level before it can drain like in a hang on overflow box. Your only showing bulk heads.

Please add height dimensions for the water level of each tank, sump etc. The height from floor to the natural drain height in each system. Please confirm that floors are at same level.

Also water flow direction arrows would help

 

[TK_KW]

I'd like to help, but I don't quite understand what you have there, and the drawing looks like it's only half done.

Is the frag tank below (as in under) the DT?
The frag tank gets water from the DT by gravity?
Is the sump below (as in lower than) the frag tank? By how much?
And the run from the frag tank to the sump is 11 feet horizontally?

I'd like to help, but I don't quite understand what you have there, and the drawing looks like it's only half done.

Is the frag tank below (as in under) the DT?
The frag tank gets water from the DT by gravity?
Is the sump below (as in lower than) the frag tank? By how much?
And the run from the frag tank to the sump is 11 feet horizontally?

A separate Cor 20 feeds the frag tank. From my sump.

From bulkhead outlets of frag rank, to top edge of sump. I have 4.5" to work with.

11' horizontally back to sump yes.

Frag tank in photo on the bottom left. Display and sump on right

 

[ca1ore]

My guess would be not enough drop to overcome that long horizontal run. Can you get even a bit of pitch on the 11’ run?

 

[TK_KW]

My guess would be not enough drop to overcome that long horizontal run. Can you get even a bit of pitch on the 11’ run?

There is slope, but runs level for few feet. Drops a inch, level, drops, level.

I was trying to avoid passing infront of my control board. Second, I had to squeak past my skimmer to my socks. Which forces me to run level.