Your garden pond. Good garden pond designs need pond volume information.
Water volume calculations or measurement for your garden pond is often necessary. This is especially important to assist in choosing pumps for a garden pond. Every garden pond with few exceptions need to circulate water.
You will need to know the volume of a garden pond under the following particular circumstances:
Pump specification for your garden pond design
Treatment of garden pond water under differing pond water conditions - eg blanket weed excess.
Addition of medicines to a garden pond. Then accurate volume knowledge is critically important
The really clever people measure the volume of their garden pond accurately when they first fill them - or they specify it in the garden pond designs or they buy a preformed garden pond where the volume has often been pre-determined. They then keep that information in a safe place. If not then this is how to measure the initial volume when filling the garden pond for the first time. Do record and keep safe this knowledge about your garden pond.
Using a hose pipe to measure garden pond volumes
The garden hose is turned on and the amount of time taken to fill a 10 gallon or other known volume container is taken.
The garden pond is then filled without changing the position of the hose tap.
The amount of time taken to fill the garden pond is recorded and then the volume is calculated as follows:
Time to fill garden pond is divided by time to fill fixed volume container. This result is then multiplied by the volume of the container. For example time taken to fill a 10 gallons container is 1.8 minutes. Time taken for garden pond filling is 23.9 minutes. Then garden pond volume is 132.7 gallons ( 23.9 divided by 1.8 multiplied by 10).
To calculate the garden pond volume.
It is very difficult sometimes to do this with great accuracy but for a garden pond it is normally not critical if we are 10% or so out.
For
regular shaped garden pond based upon squares and rectangles the calculation is
simple using fixed formulae. A more complex regular shaped garden pond such as
trapezoid, triangular, hexagonal and so on are included on the FREE calculator
link above as also are the calculations for a simple round, square, rectangular
shaped garden pond also.
Coping with Irregular shaped garden pond An irregular shaped garden pond is calculated using "squares". This is a bit tedious done manually but with the help of the calculator programs above is greatly simplified and the result for your garden pond volume is very accurate when care is taken.
I have read your book with interest and have found it most interesting. I wish I had read it before constructing my pond Gordon Powell, seaview@scottburgh.co.za
I read your book cover to back cover last night ., Excellent, this is just what I was looking for. It is hard to find such a comprehensive collection of information in one place. I have been searching the web for about 4 months. Brett Salavoy, Brett.Salovy@za.didata.com