Carey's 90g FOWLR Build!

[coffeetwitch]

Where did you get 600 gph from?

 

[carey]

I just read it in another thread somewhere on here...LOL I have no idea which one though....

 

[coffeetwitch]

I've read 600 and I've read 950

 

[carey]

Hmm I think I need to know for this build...maybe someone will chime in or I'll start another thread later to find out for sure.

 

[coffeetwitch]

Hmm I think I need to know for this build...maybe someone will chime in or I'll start another thread later to find out for sure.

Let me know what you find out. I wonder if one is for DIY and one is for stand pipes like yours

 

[carey]

I have no idea. lol I think where I read it was in a thread you're involved with.

 

[coffeetwitch]

Well if I was involved, I wouldn't believe it.

 

[huma-huma]

Carey you could test the overflow to dtermine the tolerate, just fill the overflow completely up and then let it drain for a minute...whatever it drains in a minute, times that by 60 and there's your flowrate

 

[ilostnemo]

Your right about 600 gph. You can get a ball valve and dial it back about 3/4

 

[coffeetwitch]

Or if you don't want it how much would you want to sell if for?

 

[carey]

Carey you could test the overflow to dtermine the tolerate, just fill the overflow completely up and then let it drain for a minute...whatever it drains in a minute, times that by 60 and there's your flowrate

I kinda wanted to know before I setup the tank and all. LOL

Isn't there a scientific formula or something or just a fact of how fast the flow would be?

 

[huma-huma]

I think if you got a pvc pipe with the same inside diameter, you could do the same test. Wish I knew off hand

 

[coffeetwitch]

http://www.pondmaster.com/PMCAT.pdf

page 28 states the 9.5 flow at 4' only being 714gph
3' 748
5' 684

 

[carey]

I mean the flow rate of the overflow.

Does anyone know how many gph a 3/4 inch and also a 1 inch hole on the bottom of the tank will actually drop?

thanks in advance, I know someone has the information out there. lol

 

[mr_X]

it seems like a 1" bulkhead delivers 600 gph, according to this site-
prefilter box, siphon box, overflow box, siphon overflow, Eurobrace, Euro-brace, Euro-tank

 

[carey]

Hmm that's not a whole heck of a lot in my opinion. Is that sufficient for a 90g FOWLR tank? I have the mag 9.5 for the return pump already so I will for sure be adding a ball valve to it I guess.

I just looked and I have a 1 inch input hole and a 3/4 inch output hole drilled. I also need to split the single input into a double to accomadate my wet dry's 2 inputs. Won't I lose even more flow because of that?

thanks very much, I couldn't find where it says the flow rate but it is a neat website.

 

[coffeetwitch]

I just thought it was a point of interest given concern of the flow your overflow can handle. I am finding two different brackets of conflicting information about how much flow "x" diameter pipe can flow.

 

[carey]

Yep, I'm following that thread too. lol

It shouldn't make a difference if it's diy or predrilled, a pipe can only flow as much as it can flow. Just wish I knew what that number was hehe... for sure anyways. I guess I'll find out by how much I have to choke back my return pump. Really wanted to know before that though. Just so I know.

So if a 1 inch flows 600 and a 3/4 inch flows only 330, how is it that the water will not overflow in the sump?

Anyone?

 

[coffeetwitch]

Overflow sump flow


That's the thread that has info pointing to 2 web sites. Last page. I don't know how to copy paste on the aa app for my phone.

 

[huma-huma]

I don't think you'll lose flow on the split, as mon as you go with a y-pipe instead of a t-pipe. Even then the loss prob isn't that noticeable id imagine.