I'm going to build my own glass overflow box using black glass. generally where is the water line from the rim of the tank? how far below the water line should I mount the box? this is a calfo style box across the top of the tank.I'll be putting in elbows in the bulkheads ( on the inside) how far below these should I put the bottom. thanks
wow, how longs a piece of string someone once asked me, i cut a piece & said " this long"
Someone can give you a straight forward answer, like 3 inch below the lip ect ect, but you need to determin how big, how much,what flow...oh the listing is endless. Or you could settle for 3 inches below the lip..lol
really only 2, damn...i missed the mark, i was aiming for 3 before you said something.
you putting me on the coutch, ok im on the coutch!
Doc, ive been having these strange dreams of late....i keep waking with an overwelming desire to smack a kidlol
Ok, lets rock dude
Define a calfo system please.....
im assuming your refering to something along this sort of line....
get me on the right track with your thinking, excite me alittle more with some sarcastic responces & were now cruzin to overflow inlightenment. Oh yeah, i can feel the love already...
Im waiting.........*looks at watch* damn im on V-time, theres a 12 hour delay...i'll be over here ..........> making the place look messy!
Ireefkeepers friend, id tuck that link i posted under your pillow for another day maybe. Bernoulli Equation isn't just a big word no one exactly knows how to pronounce, its the corner stone calculation that will come in handy one day. Essecially if you stay the DIY route
I'm going to put in a horizontal overflow box across the top it will be 34" across 5" wide and 5 1/2" deep.the tank is 4' long its a 150 high. I'll be running a hammerhead pump with 18' of head. I'm not sure yet how much flow I'll be putting through the return lines but it will probably be around 2000 GPH .the box will have 4, 1" drains in it. my question is where do most people keep there water line from the top of the tank.
I realize theres no one answer to any question in this hobby thats why I came to a forum with thousands of people to ask for their experience and advice.if you're going to give neither than why bother posting? you should listen to the podcast helping hobbyists, it would hopefully help you.
oh yeah, nice handball. Just a bit of background info because your new here bud - Let it be known that I've helped more than my fair share of people in my time, & more importantly ive been loyal to only this site for as long the beer affected brain cells can recall!
My postings can come with abit of flair that you took abit personal cause it wasn't dirrectly helpful to you!
Which is cool, i cant ask you to look at it from my perspective, cause reality is your not living my perspective. Try posting the same questions & answers over & over & then throw that dice at me down the track & you'll see it comes up a different number.
Some of my postings are meant as filler post, gives me a chance to take a break whilst still being on site, also gives others a chance to have a giggle when everything else in life is so serious. This place is meant to be a happy helpful place, where everyone is treated equal, Ive believe ive even proved that by still wanting to help you even after your sarcastic taunts.
As far as posting goes, i belive in quality, not quantity when it comes to good information,. Im sure most from TR would agree that although alot of tounge & cheek posting does happen, the "real" postings i produce are world class! is that spit i feel?
Your Overflow box, are we talking an external 34 x 5 x 5.5 unit fed over the braces or are you building a high placed perminant weir & drilling in from the back of the tank?
To answer your question on the water hight, it always depends on a few factors. Most are personal, some are structual.
eg, hood ridging heights, cause you want to aim to have water just past the bottom of the hood covering, mainly for astetics & you dont want light shinning in your eyes dirrectly.
Generally id say the avg would be between 1.5inch - 3inch below the top of the tank. But once again, factors can come into play when everyones tanks are structually different.
Having four dump pipes isn't a problem, redundancy is factored automaticly.
Its equating to just under 4inch anyways which is plenty for a 4 footer.
Once again though, need you to answer the top question so im on the same wave length of design. Dump pipe design will be the next question id imagine.
I suggest paying attention to your return pumps. Quality goes along way to making everything else a breeze.
it is a CTC (coast to coast) inside on the back wall V.
thanks for clearing up how you post to my buddy. when i first arrived here, i didn't know how to take some of your posts either. now that i am here ... i look forward to your replies on subjects such as these. i have to agree ... your SERIOUS replies ARE world class !! thanks again buddy.
__________________ Bobby
"I FORMERLY glued animals to rocks" NO TANK RIGHT NOW, but you never know when I might throw one together !! I have everything I need but the time!!
Show people you appreciate their advice! Click the icon under their name to add to their reputation.
no stress bud, understanding ozzie is an aquired taste that needs aclimating too!
Coast to coast hey, im with ya!
so great project you have going then, look forward to your developments!
Do you feel your question has been answered?
Id actually like to guage how your going to plumb it actually.
thank you for your last post I will not take things so seriously in the future .I wasn't intending to taunt you just trying to get help.
as bobby said the box will be internal. I will have a hood with MH retrokit lighting. there are allot of variables that I don't even know to ask so your questions are quite helpful.I'm not really sure what I'm doing on plumbing. I'm thinking of combining the 4 drains into two 2" drain pipes. I was going to use Tee's off the bulkheads much like the picture you posted . are the caps with the tubes in them a good idea to reduce noise? as far as my pump do you think its not a quality brand because I haven't bought it yet.
In the future I will try to give much more info on what i have.I may not be used to ausie ways but AC/DC is one of the greatest bands of all time! thanks matt
thank you for your last post I will not take things so seriously in the future .I wasn't intending to taunt you just trying to get help. thanks matt
lol, change that to mate & you can call us even
I will have a hood with MH retrokit lighting. there are allot of variables that I don't even know to ask so your questions are quite helpful.
Dont worry, there's always going to be more questions than answers in this hobby, at some point your knowedge just reaches a point where you cover or check off the listing enough answers to make it work. Anything else goes wrong after that & you shug your sholders, or blaim it on someone else...lol
I'm not really sure what I'm doing on plumbing. I'm thinking of combining the 4 drains into two 2" drain pipes. I was going to use Tee's off the bulkheads much like the picture you posted . are the caps with the tubes in them a good idea to reduce noise?
To be honest here & from my opinion bag, id for-go the 4into2 idea, & concentrate on 2 larger diameter pipings straight from the start. means bigger piping of course, which means trying to find a big enough drill bit for the bulkheads, but its worth it. Id use a submerged durso type dump pipe to cut down on the noise, but with a few 45deg elbows thrown in the mix so you can make the angled transition for a side/back drilled design. The large diameter piping can compensate for any restrictions caused by the bends in pipework on the way to the sump. Id also face them away from each in your Coast to coast, saves any potential vortex making more noise..lol
Teeing off i wouldn't consider, due mainly to any pressure differences that can cause your overflow to be temperarly interupted all the time, which sounds like a constant toilet flush
One of my mini tank projects is due for a clean soon, so i'll post up some pictures of how i built my durso system if you like. The caps & tubing you saw in the first pic is for atmosphiric regulation, without a semi controlled dose of air traveling with your water it would effectivly starve itself of water due to low pressures in the pipework being drawn from the next biggest source - the base of the pipework. its not long lasting, but enough to upset the constant flow, which in turn fills the weir heigher, then the toilet flush thing we talked about earlier happens till it finds a constant equalibrium.
Just for the record, i dont use the extra tube sticking out the top. when using PVC i prefer to regualate with the end cap.
as far as my pump do you think its not a quality brand because I haven't bought it yet.
I dont know anything about american gear sorry, have to ask your fellow reefers on this, It was just advice to not skimp on this equiptment if you can help it, cause its the bloodline of any system.
in that case you can use expander Y 's if you want to converge them as 2 pipes to the sump, its a straight fall then, so path of least resistance takes over
V-series Productions 
of beer! 
. Just a bit of background info because your new here bud - Let it be known that I've helped more than my fair share of people in my time, & more importantly ive been loyal to only this site for as long the beer affected brain cells can recall! 
is that spit i feel?
icon under their name to add to their reputation. 
