| |
Pond Formulas
< back to gardening
tips
Liner
(Pond Length + 7 feet) x (Pond Width + 7 feet) = size of
liner needed
i.e., if you want a pond 4'x7': (4'+7') x (7'+7') = 11'x14'
Volume of Water
Length x Width x Depth x 7.5 (the number of gallons in
a cubic foot) = the number of gallons of water in the pond.
Pump Sizes
| Fountain: |
Spouting figures = 90 to 170 gallons per hour
pump. |
| Waterfall: |
For every inch of width at the widest point in the stream,
multiply by 100 GPH (gallons per hour) to get the pump size.
If the size is not a normal pump size, go to the next largest
one. i.e., 24" x 100 = 2,400 gallons per hour pump. 1/4"
deep when full. |
| Biofilter: |
Circulate half the volume of water in the pond per hour. i.e.,
if you have a 700 gallon pond, you need a 350 gallons per hour
pump. |
Plants
| Shade Coverage: |
60% to 70% of the pond surface covered
|
| Under Water Grasses /
Oxygenating Plants:
|
In a pond less than 25 square feet - one
clump per square foot.
In a pond more than 25 square feet - one clump per 2 square
feet. |
Fish:
- In a pond less than 25 square feet - 1" of fish per square
feet of pond.
- In a pond more than 25 square feet - 2" of fish per square
feet of pond.
|
|
|