DIY OVERFLOW HELP

  • We are currently upgrading MFK. thanks! -neo
I was scared to shift the glass in the over flow, didn't know it cured that quickly. Its dap clear window and door silicon, non-GE II. I made sure not to get that!
 
midnight;1810331; said:
...i just dont see how 1" can flow 600 when my 3/4 cant even do 256
and i think 600 for 1" might be just strait pipe
every turn kills flow

im just picturing
mine 3/4 at 256gph,cant handle it
your overflow is twice the size of mine,but you will be flowing over 3 times what i am
see what im thinking?lol...

Hey just to interject, volume capacity is not directly proportional to pipe diameter. I'll see if i can find the specs but in essence (1) x 2" pipe carries a whole lot more than (2) x 1" pipes. Physics, I don't fully understand it but they do call them laws.

um.. maybe you can read this it hurts my brain this early..
http://people.uncw.edu/lugo/MCP/DIFF_EQ/deproj/orifice/orifice.htm
 
DrZacharyus;1810221; said:
NO! PVC glue, I am not retarded. I made a 20 gallon sump if you didn't notice it.

I'm clearly the retard...or half of one. The right side of my brain is going to be out of comission for a few days. And that was my good side.
 
ar0wan;1810666; said:
...(1) x 2" pipe carries a whole lot more than (2) x 1" pipes. Physics, I don't fully understand it but they do call them laws...

Not physics actually, just a little extra simple math. You have to calculate the cross sectional area instead of using diameter. As you double the diameter of a circle, the area quadruples. The area of a one inch circle is 3/4 square inches but the area of a two inch circle is 3 in^2.
 
ah now i remember the shortcut

1d = 1f
2d = 4f
4d = 16f

so to double the flow you would only need .5x more diameter. So based on midnights .75" = 256gal/hr you would need a 1.5" to carry 1000gal/hr. I think. :nilly:

yer gonna want 2" pipe all the way DrZacharyus.
 
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