Max flow through a 45 gallon sump?

[bitteraspects]

Its an overflow, there is no siphon.
The overflow will only move as much water as the pump puts into the tank.

 

[Weaksrt]

There are a few different style overflow boxes that maintain a tank level in the weir. You need to see them to get a better understanding how they work.

I use a durso type overflow in a drilled tank, the weir maintains a constant tank level and the level in the overflow box lowers according to the height I set the durso at and how much I open the valves on the drains.

Ok so i understand teh Drilled Tank supplied as its just overflowing the stand pipe straight down.

Now say i dont have a Drilled tank and just using a trap to use in the place as the stand pipe.

And yes id like to see a few In person or in a video of how these work in detail before i go putting more money into my DIY sump. im only about 30 bucks in.

 

[Weaksrt]

Its an overflow, there is no siphon.
The overflow will only move as much water as the pump puts into the tank.

I understand this now but what about a Non drilled tank. Whats the best way to go about this?

 

[fox3]

Try this link it might prove useful. http://www.melevsreef.com/allmysumps.html

I have only drilled tanks. CPR makes boxes you might want to preuse.

http://www.cpraquatic.com/products/overflows.html

 

[Weaksrt]

Try this link it might prove useful. http://www.melevsreef.com/allmysumps.html

I have only drilled tanks. CPR makes boxes you might want to preuse.

http://www.cpraquatic.com/products/overflows.html

Best Info i have received the entire time ive spend here in MFK for more Sump info.

I now understand that the CSoverflow actually lowers the "level" of the waterline and holds the syphon ready for the oncoming inflow of the pump to the tank and will not happens to lose the Cirlce in which we hope the sump will be operational while we are gone from the house!

Thanks again!
I need to buy one of these CS overflows otherwise i can make it out of PVC pipe but i think this will look cleaner and be better operation than me making it.

Any Place for Good deals on the CSoverflows? Ill check out Ebay listings.

 

[MaddMaxx]

Weaksrt, there's some great overflow info in this link from the DIY section http://www.monsterfishkeepers.com/forums/showthread.php?t=219465

 

[Weaksrt]

Weaksrt, there's some great overflow info in this link from the DIY section http://www.monsterfishkeepers.com/forums/showthread.php?t=219465

Thats some good stuff too!

I dont know how to would be able to support the PVC piping sufficiently...

The overflow box is a bit more expensive but seems worth the headache and possible accidents...

 

[bitteraspects]

I understand this now but what about a Non drilled tank. Whats the best way to go about this?

I was referring to a non drilled tank.
A simple DIY PVC overflow does the exact same thing as drilling the tank, only rather. Than having a hole through the tank, the hole is replaced by a PVC pipe. When the water level drops below the inlet of the PVC, the water stops flowing to the sump (just like when the water drops below the hole in a drilled tank), and when he pump is turned back on and he water level rises above the PVC inlet, the water will begin flowing back to the sump (exactly as it would with a drilled tank)
The only difference is the aesthetics. Drilled tanks offer a clean look, while the PVC overflow will leave you with pipes in the display. But considering that all canisters (and HOB) filters also leave you with an intake pipe and spraybar in the display, its really not that much different at all.

A properly built and set up PVC overflow is completely safe and works perfectly. Just as good as drilling the tank or using an expensive box overflow. I use these personally and can vouch for their operation. Many members here use these PVC overflows.

 

[Weaksrt]

Yea but i will need a 1 1/2" PVC pipe to acheive the Flow rate and can get costly though...

Its really hard for me to see the PVC working... i dono why... my visual is way off or something... i cant imagine the same as the Overflow box. i think its the use of the overflow box in the tank that the tank will fill and will hold water when the tank is low. Ill need to see one in a video i guess.... the Box video explained it perfectly for me... i have a low comprehension level...

 

[bitteraspects]

Costly?
A 10' piece of 1 1/2" PVC costs around $3.50. maybe $4. You can build 2 overflows and all your return plmbing for under $10.
The PVC overflow works exactly the same as the overflow box, but at a fraction of the cost.

I made videos for a couple of members on another forum where I simulated a power outage scenario (by shutting off power to uhe entire system) and then powered back up. They're on YouTube But I'm posting from my blackberry, so I don't have access to tthe links right now. You can search them I. Youtube though. Username: AquaticAspects101