Silent and Failsafe Overflow System

[Barfly]

Had a quick question about this. Planning my system right now and the plan had been to have 3 1.5" drains on my system with the weir height such that standard water level would be 3" from the top since with a combination of wavebox and MP60, there may occasionally be a wave as high as 2". This is a rimless tank so don't want water sloshing over the side. Are you saying that by using a 2nd open channel I could possibly raise the height of the weirs so that the water level is a little higher?

You should have no noise below the valve if the siphon channel is working correctly.

 

[Barfly]

hey bean just thought, if the water is comming in at 1" then converts to 1.5" and the ball valve tunes it in. why is there no noise after the ball valve. i see it as your tuning back the 1.5" to 1".... hope you understand what im saying

You should have no noise below the valve if the siphon channel is working correctly.

 

[RicoJ]

What size bulk heads are you guys using?

 

[vietcu]

I have a question as to whether I should go with 1" bulkhead or 1.5", based on my system configurations. I have read this thread for months now, and know exactly how the bean should work (hopefully). My build will be a 205g peninsula with an external overflow. The flow will go down to my basement, I am figuring the length to be about 10-12 feet total. I could very easily go with 1.5" bulk, but I am concerned about having to restrict the pipe too much as it might be to big of a pipe. I am using a panworld 200 as a return pump btw. Based on my calculations and head loss, it comes out to be the panworld pushing about 1000g of waters per hour back to the tank. And the calculations of the bean overflow with a 1" pipe and 10 feet of drop to be able to pull over 3000g per hour. Could someone check to see if my calculations are right, and recommend which size bulkheads to use? Thanks again.

 

[bruce 1]

My tank is going to be 72x27x27. I am going with the bean animal system. I will most likely go with a Dart pump for the return. How long should the skimmer box be, (LxWxH) and what size should the bulk heads be for the bean animal? This will be internal overflow box.

 

[Barfly]

I have a question as to whether I should go with 1" bulkhead or 1.5", based on my system configurations. I have read this thread for months now, and know exactly how the bean should work (hopefully). My build will be a 205g peninsula with an external overflow. The flow will go down to my basement, I am figuring the length to be about 10-12 feet total. I could very easily go with 1.5" bulk, but I am concerned about having to restrict the pipe too much as it might be to big of a pipe. I am using a panworld 200 as a return pump btw. Based on my calculations and head loss, it comes out to be the panworld pushing about 1000g of waters per hour back to the tank. And the calculations of the bean overflow with a 1" pipe and 10 feet of drop to be able to pull over 3000g per hour. Could someone check to see if my calculations are right, and recommend which size bulkheads to use? Thanks again.

Your calculations look correct and I would go with a 1" drain line and bulkheads

 

[Barfly]

My tank is going to be 72x27x27. I am going with the bean animal system. I will most likely go with a Dart pump for the return. How long should the skimmer box be, (LxWxH) and what size should the bulk heads be for the bean animal? This will be internal overflow box.

Well, the skimmer box needs to be able to fit the skimmer you choose so without knowing the skimmer you are using it is impossible to tell you how big the skimmer section should be. The same goes for the drain pipe size. We need to know how much flow will be going back into the DT and the head height of the drain lines. You will be fine using 1.5" piping for the drains, but depending on the flow and drain height, it might be overkill.

 

[bruce 1]

I should have put overflow box. not skimmer box.

 

[bruce 1]

Well, the skimmer box needs to be able to fit the skimmer you choose so without knowing the skimmer you are using it is impossible to tell you how big the skimmer section should be. The same goes for the drain pipe size. We need to know how much flow will be going back into the DT and the head height of the drain lines. You will be fine using 1.5" piping for the drains, but depending on the flow and drain height, it might be overkill.

The sump will be under the tank say 4 feet? And I said skimmer box but should have said overflow box. What size should it be? With 1.5 inch bulk heads? LxWxH? thank you

 

[Barfly]

The sump will be under the tank say 4 feet? And I said skimmer box but should have said overflow box. What size should it be? With 1.5 inch bulk heads? LxWxH? thank you

I would go with 1.5" for the drain lines and bulkheads. As for the size of the overflow box, I would say at a minimum 20"L x 6"W x 7"H. Once you figure out the type of bulkheads and the size of the holes that need to be drilled, you can find out the absolute minimum dimensions needed.

 

[bruce 1]

Thank you Bruce.

I would go with 1.5" for the drain lines and bulkheads. As for the size of the overflow box, I would say at a minimum 20"L x 6"W x 7"H. Once you figure out the type of bulkheads and the size of the holes that need to be drilled, you can find out the absolute minimum dimensions needed.

 

[all4fire39]

beananimal overflow help.

beananimal overflow help.











these are the photos of my tank setup right now and I'm not sure why but I cant get this to pull the full siphon until i tweak it over and over then it finally catches it. Then i turn it off and turn it back on and it wont catch the full siphon again.... my pump is an eheim 1260 640 gph with a head height of i think its 10 feet, and the plumbing size is the same as you described on your website... but it never gets the full siphon until i mess with it forever and sometimes the other open channel pipe just keeps pulling water down. Any suggestions on this would be loved forever! O and when i get the full siphon it still has a few bubbles down in the bottom. thanks.

 

[TheFishMan65]

Do I have this right? The sump is ten feet below the tank.

If so try moving your valves to right before the exit. Bean said somewhere it works better.

I think this is because it is easier to pull the air before the valve than after.

 

[Barfly]

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these are the photos of my tank setup right now and I'm not sure why but I cant get this to pull the full siphon until i tweak it over and over then it finally catches it. Then i turn it off and turn it back on and it wont catch the full siphon again.... my pump is an eheim 1260 640 gph with a head height of i think its 10 feet, and the plumbing size is the same as you described on your website... but it never gets the full siphon until i mess with it forever and sometimes the other open channel pipe just keeps pulling water down. Any suggestions on this would be loved forever! O and when i get the full siphon it still has a few bubbles down in the bottom. thanks.

OK, I think I see the problem. First of all, a 1260 at 10' head is only pushing about 100gph max. Next, assuming you are using 1.5" drain lines, the siphon alone would handle over 8000gph. Although the system has a large working range, I think you are outside that range with the combination of pump, head height, and pipe size.

Options:

1) increase flow back into tank by using a more powerful pump.
2) decrease drain pipe size to 1"
3)Move the valve on the siphon line to about a foot or 2 above the sump.BTW, the valves on the other 2 drain lines are not needed. There will never be a reason to close those valves and therefore they should always remain 100% open.

HTH

 

[Barfly]

Just to be clear, only the siphon drain line needs to be reduced. You could easily fix this by cutting of the valve on the siphon line and add a 1.5 to 1" adapter. Plumb the siphon line down to the sump and add a 1" valve. This combined with a larger flow rate from the return will solve the issues you are having.

 

[all4fire39]

So pump recommendation,being really quit please. If i get a bigger pump would i need to reduce the size (1.5 inch) plumbing? And if this works you are going to be my freaking hero!

 

[Barfly]

So pump recommendation,being really quit please. If i get a bigger pump would i need to reduce the size (1.5 inch) plumbing? And if this works you are going to be my freaking hero!

Oh, it is gonna work.

Is this for the 12g?

 

[Barfly]

And what are you planning to put in the tank as far as corals? SPS?

 

[all4fire39]

No this is for a new build. 75 gallon, plus 40 gallon sump. and I think I'm going to be doing a mixed reef tank.

 

[roni]

thanks john. I think I've got it