Im curious to know everyones thoughs on using 10mm glass instead of 12mm glass for the viewing window.
I will only be filling the tank to the 21 inch mark, which is to the top of the viewing window.
If i use 10mm, i will have a safety factor of 3.55 (rated as safe)
If i use 12mm, i will have a safety factor of 5.03 (rated as very safe)
On a tank with these dimentions, from what i read, i would need a safety factor of 2, befor it would be rated as "safe" im not sure what safety factor means, so i thought i would ask the pro's first on their thoughts on what glass thickness i should go with.
I noticed that other DIY plywood tanks that are triple the size of mine were using 12mm for the viewing window.
Cost isnt an ussue, as it would only be a $40 differance. Its the wait. it will be 3 weeks to get the 12mm glass from date of order, but they have 10mm on hand.