Need help with viewing glass calculations.

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David K. Bradley

Feeder Fish
MFK Member
Feb 27, 2010
698
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Chippewa Falls, Wisconsin
I have tried to access the SD Plastics Acrylic Calculator web site to access the use of this calculator and have been unsuccessful. My computer will not allow this access.

I am in the R & D stage of a DIY PLYWOOD BUILD for a tank volume of roughly 1,436.25 US gal. A water volume area of 144 inches X 48 inches X 48 inches. I have read the entire thread on the Pro's and Con's of Glass vs. Acrylic. I will either use Acrylic or Starphire Glass for my viewing window or windows.

The size of my viewing window will be 132 inches X 36 inches . At the moment, I am planning to have an added 2 inch border around the viewing window which would make the final dimmensions 136 inches X 40 inches. This calculates to 5,280 sq. inches or 34,066.56 sq. centimeters.

My questions to everyone are:

[1] What simplified mathmetical formula would I use to calculate the water volume pressure against the tank viewing window?

[2] What simplified mathematical formula I may use for calculating the thicknesses for:
(a.) Starphire Glass; and
(b.) Acrylic

[3] In calculating these parameters for my viewing window, is there a safety factor involved and if this is so, how would this be calculated as well?
NOTE: I do realize and fully understand that MFK nor any MFK member can not guarantee the validity of a manufacturer's product.
So knowing this and keeping this in mind, is a safety factor calculation still a do-able thing?
 
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