Silent and Failsafe Overflow System

[uncleof6]

<a href=showthread.php?s=&postid=14726611#post14726611 target=_blank>Originally posted</a> by tonyespinoza
Does anyone know a place where I can look up the maximum flow through various pipe sizes? I'm mostly interested in 1.5", 1.25", 1", and 0.75".

There is a calculator on the RC homepage to figure pipe size for flow needed. I don't know what mathematics were used to model it, but it should be close enough, just remember that at full siphon it will be somewhat higher... like alot...... it is a drain calculator. On the return side, the lower the pressure, the higher the flow... all things being equal... god bless Akum. Therefore you can put more water through a larger pipe.... and the heck with the mathematics of it, and the reason to up size a return line--to a point.

 

[125G Reefer]

<a href=showthread.php?s=&postid=14734768#post14734768 target=_blank>Originally posted</a> by Rocketboy52
I've been a lurker on this post for quite some time, but I finally posting since I have something to show. I'm a believer in this idea and started my build using this overflow setup. I'm doing an external overflow however that looks like this:

I haven't got water in the tank yet, but hope to in the next week or two. I just started a build thread detailing the master plan here:
90 Gallon Build/DIY mod

:eek2: WHOA. Seriously, very nice.

 

[teesquare]

I like the idea of the vertical overflow slots...... but I wonder what that will do to the "silent" part of the idea behind Bean's thread here?
What kind of flow rate are you planning on? Can you post what you experience as far as noise?
Thanks,
T

 

[Rocketboy52]

Will do, right now my plan is ~400gph. Its actually the slots that I hope will prevent gurgeling by providing a smoother transition into the external box. I should have an answer for you in a week.

 

[chuggy]

ive incorporated this method in my frag tank and cant even begin to tell you how much i like it its def dead silent my skimmer is now louder than my overflow thanks beananimal, ps you should have patented this method.

 

[teesquare]

Chuggy:
Are you refering to the vertical slots rocketbooy5 did...? Or the "Beananimal" style overflow altogether?
T

 

[MSU Fan]

<a href=showthread.php?s=&postid=14636831#post14636831 target=_blank>Originally posted</a> by MSU Fan
Sorry Bean, I kept trying to post back on this but RC kept crashing every time I tried.

The flushing was intermittent - could be every 5 mins (or less), every 15 mins, or hours apart. I did say was because I haven't heard it do that in a while. So maybe the pipe just needed slime up? Or the process become more regulated (over time)? Not really sure, but like I said, it seems to have worked itself out. Thanks.

Just to provide an update: Bean, since I wrote the post to you about the flushing situation, I haven't heard it flush since then!!! So I guess all I needed to do was mention the issue and bam! It's fixed. I wish more of my problems were fixed this way.

 

[chuggy]

Beananimal" style overflow altogether?

 

[teesquare]

Chuggy:
Was your remark in reference to the one immediately prior to yours -OR- were you sying that you used the coast to coast style overflow as originally described in this thread...
Capiche?

 

[chuggy]

i was just saying how much i loved the silent fail safe overflow i also included the calfo coast to coast in my setup i love them both awesome surface skimming and silent overflow what could be better im ****ed i set my 120 up with hob overflows they suck and should be banned. -

 

[hamiltonguy]

Hey, I was wondering exactly where the return would go. Could it plumbed into the same overflow box as the rest of the three pipes? If anyone can post a picture of their plumbed return, that'd be great.

 

[NVReefer]

my tank will have the C2C and my returns are going through the back of tank then 90 down through bottom of overflow, will post pics when i get the tank back. tank will be here next week. then i setup my beanflow

 

[stormrider27]

Wow what a great read! My hat is off to Bean for his knowledge, patience and most of all for being so unselfish with his time by answering everyone's questions! Now, of course, I also have a question for the group. I want to keep the top center of the back of my tank clear of plumbing so would there be any issues with running two narrow internal weirs on opposite ends of the back wall of the tank and piping the water down to one external overflow box that is roughly 12-15" below the water line?

Thanks,
Mark

 

[bnmir]

I'm having a little trouble with the down-elbow siphon line not starting up reliable. sometimes the level rises until the open vented line starts up instead. It's like the siphone line is vapor locked with air trapped.
The discharge of the lines are below water in the sump, which I believe is correct. Anyone experienced this? Suggestions?

 

[coralfragger101]

Sounds like yoiur discharge line (the siphon one) is too far below the water. It probably should be no more than about an inch under water. The less underwater the pipe is - the easier it is for it to purge the air out on start up due to less back pressure I think.

 

[MrSpiffy]

Bean,

Any thoughts on this setup? It's going to be basically what you posted initially, but I was thinking of spreading the drains apart. Is it best to keep the drains together? Or would this be fine? It's a 65-gallon, btw.

 

[MSU Fan]

MrSpiffy - I don't think that it matters whether the drains are close or far apart. However, it will make a huge difference if the overflow box is not level. If that is the case, I am not sure that the drain system will work as planned.

 

[oldsaltman]

FWIW, I filled my 90g with water while it was setting on the stand and before I siliconed in the baffles. I used the water as a level so I could mark the location of my baffles and get them just right. My 4' bubble level was almost 1/4" off over the 4' length of the tank!

 

[MrSpiffy]

That's a good idea, oldsaltman. I may try that, just to make sure it's right. Or I'll check my tank on the stand to make sure it's truly level before siliconing anything.

 

[oldsaltman]

I would fill the tank with water if you can. The stand may settle some after the tank is filled.