How Many HydroChambers™ Do I Need?

Each HydroChamber™ holds 6.8 cubic feet of water above the pump.
Water Volume: Length x Width x Depth = Cubic Feet of Water.
1.5" water depth = .13'
2" water depth = .17'
3" water depth = .25'
4" water depth = .34'
5" water depth = .42'
6" water depth = .50'
Example #1: 10' long x 2' wide x 2" (.17') deep = 3.4 cubic feet of water. This design will require 1 HydroChamber™.
Example #2: 20' long x 1.5' wide x 2" (.17') deep = 5.10 cubic feet of water. This design will require 1 HydroChamber™.
Example #3: 10' long x 3' wide x 3" (.25') deep = 7.50 cubic feet. This design will require 2 HydroChambers™.
Example #4: 3' long x 2' wide x 1.5" (.13') deep = .78 cubic feet. This design will require 1 HydroChamber™.
Example #5: 8' long x 6' wide x 6" (.50') deep = 24 cubic feet of water. This design will require 4 HydroChambers™.
Example #6: 4' long x 3' wide x 2" (.17') deep = 2.04 cubic feet of water. This design will require 1 HydroChamber™.
Example #7: 12' long x 4' wide x 3" (.25') deep = 12 cubic feet of water. This design will require 2 HydroChambers™.
Example #8: 22' long x 1.5' wide x 2" (.17') deep = 5.61 cubic feet of water. This design will require 1 HydroChamber™.