Important Pond Calculations

To determine the size of a pond liner: 

Length + 2 x depth + 2 x 1 ft (for overlaying outside edges under your coping of rocks.

For example, to create a pond measuring 8  feet by 10 feet by 2.5 feet deep, you will need a liner measuring 16 by 18 feet.

Length=(2 ft x 2) +  10 ft +  3 ft =18'ft                               

Width=(2 ft x 2) + 8 ft +  3 ft =16 ft

We cut liner to fit your dimensions.  It is wise to dig your pond and then re-measure.

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To calculate the volume of a pond:

Length x Width x  Depth x 7.48 = Pond Gallons  (use measurements in feet)  If you have a circular pond, multiply the dimensions by 5.9

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To calculate the size of a pump:

Pond Volume/2 = Pump Size

(The pump should circulate the pond's water volume at least once every two hours. Add to the pond's volume if you are using a fountain or waterfall. And remember, each foot up you are pumping reduces the flow significantly---so check the boxes to see what the actual flow is!)  Also the more fish you have, the greater the need for oygen.



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