Silent and Failsafe Overflow System

good point...rethinking....I suppose i could have 2 seperate wierboxes, since they would both dump into the external box...and the "quiet" might be dictated by balancing the wier flow and the box draining....
thanx again....
you may now return to someone else hijacking this thread...sorry
 
i dont plan on using bulkheads on the tank (in the wierboxes)...just on the external box....perhaps i should create my own build thread with pics...and retire from hijacking...
 
<a href=showthread.php?s=&postid=14788923#post14788923 target=_blank>Originally posted</a> by sgolden
good point...rethinking....I suppose i could have 2 seperate wierboxes, since they would both dump into the external box...and the "quiet" might be dictated by balancing the wier flow and the box draining....
thanx again....
you may now return to someone else hijacking this thread...sorry
Click to expand...

Your questions are directly on topic, so it is not hijacking, actually we have hijacked with the side banter. I edited my post to remove the bulkhead thing, as I was thinking about it, that would not make sense. Where the holes are is not a factor, and the coast to coast internal is the way to go. You do not however want to split the external.

Jim
 
Yes the chart above states there are many factors to consider...

I am going to use a barracuda for my return and will just use 1.5" pipe and bulkheads.
 
<a href=showthread.php?s=&postid=14794610#post14794610 target=_blank>Originally posted</a> by jjk_reef00
Yes the chart above states there are many factors to consider...

I am going to use a barracuda for my return and will just use 1.5" pipe and bulkheads.
Click to expand...

You are talking about on the biocube right? :D

J
 
Lemme see here.......
BernoulliandContinuityEquation.gif


no wait maybe this one.......FR = (Pi (R^4) (P - Po))/(8 N L) ......no wait a minute, you gunna run a sand bed? hummmmm would not be interested in an undergravel filter would you? Could pull out Hirayama's Inequality....... hard to represent calculus on the pc though.... well I ain't figured that out anyway.......

Imagine yourself sitting on a relaxing couch. The evening breeze rustles outside after a hot day, a light quiet almost inaudible hummm in the background, as you watch..... you can't help but give a huge sigh of relief, as you take a sip of (insert favorite drink here) and the words come to you as if just a whisper.... Reeflo-- the only way to pump........

sorry Bean, and all... sometimes comic relief is a good thing.

J
 
Bean (or anyone), does it matter in what order I place the three standpipes?

For instance, could I place the siphon standpipe in the corner of the overflow box or would that cause some sort of uneven flow? I ask because it seems like most people put the siphon in the middle of the other two standpipes and wanted to know if theres a reason for that.
 
Well, I'm sold on the concept. I had been upset that my LFS talked me out of drilling for a calfo overflow when I bought the tank, but that was also before I saw this system to go with it. When I get to the filtration stage of my big upgrade this spring, I'm definitely decided on a Calfo/Bean setup.

Just thinking out loud though, I'm probably going to use 1" standpipes in this build. The tank is a 90 gallon with a 29 gallon tank I'll be converting into the sump. I'm not planning a massive flow through the sump, probably around 750gph or so. I'm also considering running pex pipe instead of PVC, but I'm a bit concerned about the fittings and if they would leech copper into the system.

-Hans
 
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<a href=showthread.php?s=&postid=14806590#post14806590 target=_blank>Originally posted</a> by teesquare
By the "PEX" - do you mean "SPA FLEX"....?
T
Click to expand...

PEX is the newer stuff being used in house plumbing these days in place of copper, and uses crimp on fittings. It's a flexible pipe that uses crimp fittings instead of solders or glues. Not the same as PVC or spa-flex.

-Hans

edit: The more I think about it, the more I'm paranoid about the PEX fittings, as most commonly they are brass or copper. I'm having trouble finding a source for the plastic fittings, and there's no way I will use the PEX without them.
 
Last edited:
I am completly familiar with Pex... My entire house is plumbed in it.
I was curious because I did not understand why you would want to use it for this purpose...
I have plumbed hundreds of systems with Spa-Flex. Never had a problem, and I recommend it hightly....
Have you had a bad experience with it?
Thanks,
T
 
Never actually used spa-flex, I was thinking PEX because I don't want to use rigid PVC anymore, too many fittings to cut and glue. I was thinking that the flexibility of PEX would also allow me to make the plumbing more space efficient, as I have to fit everything inside the stand for the tank. 1" PEX is also about .25" smaller in OD than PVC.

How does the spa-flex compare to PEX for flexability?

-Hans
 
Same or better flexibility. And it glue up just like ridgid PVC.
Actually, it is a flexible PVC. It can eliminate mos of the hard turns that are flow restrictive in a tank/sump plumbintg job.
The best place to buy it is at a pool/spa distributor, or you can orde it from www.flexpvc.com. It is not cheap either way - but because it eliminates a lot of elbows, and is faster to plumb with, for me it is the best choice.
T
 
you have to consider though, that with manifold type things that have valves associated, the need for support is greater. Hard piping manifolds, drain heads, etc. would be wiser than universally using spaflex or any other flexible line. I use spaflex, but a more judicious application.

Jim
 
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