Hi All,
I'm on a tight timeline to make some final design decisions for a sump build. I'm having one custom built. My display is 440 gallon roughly (86 x 42 x 28) peninsula. I ended up with 2 inch drains on my tank (kinda wish I went with 1.5 but oh well). That's what started me down the path of custom. 1 year in the hobby, tons still to learn, but I'm trying to go in big with this tank and not make any silly mistakes due to inexperience that I'll regret later. On the sump, I'm trying to keep it simple overall. Current planned size is 60 in long, 35 in wide, 18 inches tall. Was thinking 20 in tall but I'm worried about clearance under the stand, I figure I'm more than making up for it in width. Here's what I'm stumped on.
1. Plan is to go with 4 seven inch socks, possibly 6 four inch socks instead. But I'd like the ability to switch to a roller mat down the road if I want to. I'm not sure how I would plumb that in. If there's enough space, maybe a 90 elbow right after the drain bulkhead? I'm also not sure how wide the sock holder should be to accomodate a roller mat down the road, since I don't have one picked out. Any advice?
2. Chambers - current plan is to go socks > skimmer > refugium > return. With so much width I'm wondering if I should split that last chamber into two, and have a dedicated reactor chamber. Or just keep it as one chamber and have enough space to more or less use it that way if I want to anyways. Also thinking if I make the splitting wall fully removalbe so I can go back and forth.
3. Additional Holes - First I added the 3 drain holes for the bean animal, then I added the two return holes (single return pump with option to add another later). I'm wondering where I should add extra for future proofing. Added add two extra by the drain. Then added two smaller one midway down the sump thinking about possibly a manifold later, or adding a UV. But I've never seen bulkheads there and I'm thinking that's probably a mistake.
4. I'm going to have a seperate ATO resavoir made. I like the idea of it being built in, but I'm worried about space already. Basically the sump will already take up the entire width of the inside of the stand. Since the stand is 86 inch long, and I lose 6 inches from the 3 inch extruded aluminum legs on each side, that leaves me with 80 inches of spaces, sump conumes 60 inches, I'm left with a space of roughly 20 inches by 35 inches. Is that enough? I was thinking I either plop the seperate ATO there, or out of the stand to the side somewhere (don't love this idea).
Here's my best attempt at a diagram of the sump.
Any and all input is greatly appreciated! I really want to get this right.

I'm on a tight timeline to make some final design decisions for a sump build. I'm having one custom built. My display is 440 gallon roughly (86 x 42 x 28) peninsula. I ended up with 2 inch drains on my tank (kinda wish I went with 1.5 but oh well). That's what started me down the path of custom. 1 year in the hobby, tons still to learn, but I'm trying to go in big with this tank and not make any silly mistakes due to inexperience that I'll regret later. On the sump, I'm trying to keep it simple overall. Current planned size is 60 in long, 35 in wide, 18 inches tall. Was thinking 20 in tall but I'm worried about clearance under the stand, I figure I'm more than making up for it in width. Here's what I'm stumped on.
1. Plan is to go with 4 seven inch socks, possibly 6 four inch socks instead. But I'd like the ability to switch to a roller mat down the road if I want to. I'm not sure how I would plumb that in. If there's enough space, maybe a 90 elbow right after the drain bulkhead? I'm also not sure how wide the sock holder should be to accomodate a roller mat down the road, since I don't have one picked out. Any advice?
2. Chambers - current plan is to go socks > skimmer > refugium > return. With so much width I'm wondering if I should split that last chamber into two, and have a dedicated reactor chamber. Or just keep it as one chamber and have enough space to more or less use it that way if I want to anyways. Also thinking if I make the splitting wall fully removalbe so I can go back and forth.
3. Additional Holes - First I added the 3 drain holes for the bean animal, then I added the two return holes (single return pump with option to add another later). I'm wondering where I should add extra for future proofing. Added add two extra by the drain. Then added two smaller one midway down the sump thinking about possibly a manifold later, or adding a UV. But I've never seen bulkheads there and I'm thinking that's probably a mistake.
4. I'm going to have a seperate ATO resavoir made. I like the idea of it being built in, but I'm worried about space already. Basically the sump will already take up the entire width of the inside of the stand. Since the stand is 86 inch long, and I lose 6 inches from the 3 inch extruded aluminum legs on each side, that leaves me with 80 inches of spaces, sump conumes 60 inches, I'm left with a space of roughly 20 inches by 35 inches. Is that enough? I was thinking I either plop the seperate ATO there, or out of the stand to the side somewhere (don't love this idea).
Here's my best attempt at a diagram of the sump.
Any and all input is greatly appreciated! I really want to get this right.

