300gal Rubbermaid transition reef pond

[karimwassef]

VS

[russ49merc]

Love this idea

[karimwassef]

Thanks. Still looking for feedback on the overflow design

[maddmaxx]

Originally Posted by karimwassef

Thanks. Still looking for feedback on the overflow design

definitely the bottom design. no need for all that extra pipping and the awkward center overflow box thing lol... the bottom design from a couple aspects for the win....

[russ49merc]

the second one is better and will be easier

[karimwassef]

I'm concerned that it's going to be very very loud... sucking sound!

[russ49merc]

but isn't it going to be outside and a temp tank?

[karimwassef]

My dad still has neighbors and an HOA...

[maddmaxx]

if that thing is going to be enclosed. nobody hearing anything lol...and its shouldnt "suck", looks like itll be gravity fed. so at that point it all depends on flow rate. the higher your return pump is, the more water that is going to over flow, which will make things- louder draining...calm the return pump down and its gets quieter...

[karimwassef]

Flow is important. Dialing it down means that the overflow wasn't designed properly. It'll be in a plastic sheet enclosed greenhouse so not much noise insulation.

To get a quiet overflow, I've always used to pipes. One running in full siphon and one gated to reduce noise. Both intake pipes and downward elbows inside of an overflow box.

Upturned intakes is the same sound as a toilet drain... unless the flow is so low that the water barely trickles through it. At 5000 gph, this won't be a trickle.

Add to that algae growth and potential for algae to overwhelm 2" pvc inlets...

[Handegard]

Why the need for a overflow at all?

Your sump and "tank" are at the same level, just go straight bulkhead to bulkhead, as water is pumped into the tank, it'll flow back to the sump.

Easy, quiet, and simple.

[Handegard]

To add- I meant just like the bottom photo, but with strainers instead of all that in tank plumbing.

[karimwassef]

That wouldn't achieve surface skimming

[Handegard]

Ahh, valid point. Something I just take for granted

[karimwassef]

Both the DT and "sump" are sumps but one will house life and the other plumbing necessitating their separation. Also, the "sump" is where I would do water changes: remove all 100 gals there and add fresh without impacting the reef or the raised scrubber.

All three should be detachable from each other for modification or maintenance

The overflow needs to support high flowrate surface skimming without noise. Being outdoors and only partially greenhouse covered, I expect bugs and dirt and dust... all of which needs to move quickly into the sump and then pumped into the scrubber asap.

Tank is going up this week so really need to close on the overflow design.

[jubei2006]

How bout combine the two? Place the overflow on the back wall with the pipes flipped over like a herbie or bean animal. With 30x water turn over should keep stuff suspended for awhile, and if you're using a surge device should further help flow

[jubei2006]

Could split the return, one continuous and one to the surge device

[karimwassef]

If I flip the elbows down and put an overflow box in the back, I'm back to the traditional overflow. I can do that but I'm back to version 1 just pushed back to the wall.

[Bobbitworm13]

Version 1 against the wall is what I would do, it avoids unnecessary piping, skims the surface, and it should be pretty quiet.

[karimwassef]

ok.. version 1 with high low pipes (go down to the floor first) or high pipes (go across)?

[karimwassef]

Old surge tank to be repurposed into a new sump

[karimwassef]

The makeshift greenhouse is getting there... just enough to keep the elements out at almost zero cost. Leftover wood and aluminum from old projects

[karimwassef]

Yes I know that can't get wet, but it's temporary...
covered the ground with old composite shingles (more leftovers).

[karimwassef]

In the back is the raised platform for the 100 gal reservoir for ATO and kalk

[karimwassef]

Front and back views.. 300 gal DT and 100 gal sump behind it.