Water pressure?

[jc420]

I'm thinking about building my own tank, but i need to know how much pressure is going to be on the walls. Is it just the weight of the water?

 

[Dr_Shakalu]

I don't know what the water pressure is going to be but you definitely are going to need braces on the top of the tank. Maybe someone will be able to tell you how many braces and how big they are going to be. Hope this helps, The Doctor.

 

[jc420]

Would it work to find the psi times the area of the wall = the pressure on the seems?

 

[Juxtaroberto]

This should help. It's quite a read, but you feel smarter after you're done.

http://www.aquariacentral.com/forums/showthread.php?t=89278

Water pressure depends only on depth. To find it is simple, just multiply the density of water times its depth. The density of water (d) is .036 pounds per cubic inch (at sea level).
P= dxh
Examples:

10 gallons:
P= .036x 12 = .43 psi

29 gallons:
P= .036x 18 = .65 psi

55 gallons:
P= .036x 20= .72 psi.

 

[mqktandy]

The formula is

P=dFn/dA

P=pressure
F=normal force
A=area

Or

dFxH=x

dF= density of fluid in this case water is 62.4pcf. Or 1728in^3 if u want ur answer in psi

H= height remember to keep units consistent

 

[CHOMPERS]

LOL. Most people on here haven't the first clue about first order differential equations. Or calculus for that matter. Or Physics.

A better explanation in laymans terms might be in order.

 

[Jgray152]

I remember a thread a long time ago asking the SAME question.

The formula is

P=dFn/dA

P=pressure
F=normal force
A=area

Or

dFxH=x

dF= density of fluid in this case water is 62.4pcf. Or 1728in^3 if u want ur answer in psi

H= height remember to keep units consistent

This is to confusing for more people. Something more simple down below.

I don't know what the water pressure is going to be but you definitely are going to need braces on the top of the tank. Maybe someone will be able to tell you how many braces and how big they are going to be. Hope this helps, The Doctor.

You don't always "need" braces. We don't even know the size of his tank

Would it work to find the psi times the area of the wall = the pressure on the seems?

Nope, that won't give you anything proper.

I always remember 2.31 ft of head = 1psi. If you had a tank which was only 18" deep
(18"/12"=1.5' / 2.31' = .65 psi) Only at the bottom of the tank. There is an area of specific gravity in that equation but you don't need it right now

I used to know a while back what size glass you would need. Maybe I can find notes some where. I am sure someone on here could tell you.

 

[nes999]

I don't know what the water pressure is going to be but you definitely are going to need braces on the top of the tank. Maybe someone will be able to tell you how many braces and how big they are going to be. Hope this helps, The Doctor.

it depends because if you have very good exturnal bracing you shouldnt.

 

[Ocean Railroader]

I remember on this program about the Hoover Dam that the same mass of water has the same pressure on the side of the Hover dam if it was only four feet wide or 200 miles long when it comes to water pushing on the walls of the tank.

 

[nes999]

I remember on this program about the Hoover Dam that the same mass of water has the same pressure on the side of the Hover dam if it was only four feet wide or 200 miles long when it comes to water pushing on the walls of the tank.

i think you mean this thread here http://www.monsterfishkeepers.com/forums/showthread.php?t=369747