Another ? for the nerd herd.
- Thread starter broken
- Start date
C'mon sump experts, where are you?
OK, I also was curious what answer you would get. I am not a member of the "Nerd Herd" or a sump expert. I did a little looking around and couldn't find a formula either.I did do a little math and here's what I would do if you get no other help.
Layout a grid 1 1/2" x 1 1/2".
This should give you 7 rows of 13 holes for a total of 91. Drill size 5/32".
A 5/32" hole has an area of .0191 Square inches (Pi x radius squared). .0191 times 91 equals 1.7381 square inches.
Using Chompers' (the real Nerd Herd) pipe sizing guide a 1 1/4" diameter pipe will flow 937 GPH with 1.227 square inches.
Being a machinist I'm betting you will carefully chamfer every hole on both sides so the above grid should flow somewhere in the neighborhood of 1000 GPH. I intentionally designed a higher flow to account for a buildup of debris between services.
What does the rest of your sump/system design look like?
Are you going to be using some form of spray bar and filter pad above the drip tray ?
If you get no more imput you might PM Ncnutcase, He's good with this stuff.
OK, I also was curious what answer you would get. I am not a member of the "Nerd Herd" or a sump expert. I did a little looking around and couldn't find a formula either.I did do a little math and here's what I would do if you get no other help.
Layout a grid 1 1/2" x 1 1/2".
This should give you 7 rows of 13 holes for a total of 91. Drill size 5/32".
A 5/32" hole has an area of .0191 Square inches (Pi x radius squared). .0191 times 91 equals 1.7381 square inches.
Using Chompers' (the real Nerd Herd) pipe sizing guide a 1 1/4" diameter pipe will flow 937 GPH with 1.227 square inches.
Being a machinist I'm betting you will carefully chamfer every hole on both sides so the above grid should flow somewhere in the neighborhood of 1000 GPH. I intentionally designed a higher flow to account for a buildup of debris between services.
What does the rest of your sump/system design look like?
Are you going to be using some form of spray bar and filter pad above the drip tray ?
If you get no more imput you might PM Ncnutcase, He's good with this stuff.
thanks for the reply dawnmarie.
I plan on experimenting with a spraypar for the return in the tank but not in the sump itself.
The overflow will go into one chamber that has polyfill for mech. filtration then it will go into another chamber that will have 2 filter socks to polish the water before it goes into the biochamber before being pumped back into the tank with a mag9.5 @ 4ft of head.
If I can find my camera I will post pics of what I have done so far so I can get some opinions on if it will get the job done efficiently.
It will be a filter for a 100gal sa/ca growout tank.
I plan on experimenting with a spraypar for the return in the tank but not in the sump itself.
The overflow will go into one chamber that has polyfill for mech. filtration then it will go into another chamber that will have 2 filter socks to polish the water before it goes into the biochamber before being pumped back into the tank with a mag9.5 @ 4ft of head.
If I can find my camera I will post pics of what I have done so far so I can get some opinions on if it will get the job done efficiently.
It will be a filter for a 100gal sa/ca growout tank.
Ummmm, I'll have a go...
Basing the theory on the horizontal flow rate of 1.5" pipe at 840 gph...
I get an area of 43cm squared. Because of friction and debri in small holes you should aim for double the area.
So work out the area of the drill bit and divide into the area required for the amount of holes.
Basing the theory on the horizontal flow rate of 1.5" pipe at 840 gph...
I get an area of 43cm squared. Because of friction and debri in small holes you should aim for double the area.
So work out the area of the drill bit and divide into the area required for the amount of holes.
Another way...I think...is to divide the diameter in half to get 1/4 of the area.
So for the area of a 1.5" pipe you would need...
4 holes at 0.75"
16 at 0.375"
64 at 0.16"
256 at 0.08"
Disclamier...This may or maynot need to be corrected.
So for the area of a 1.5" pipe you would need...
4 holes at 0.75"
16 at 0.375"
64 at 0.16"
256 at 0.08"
Disclamier...This may or maynot need to be corrected.