Charts and Conversions
Approximate Gallons of Water in pond
Irregular Pond: average length x average width x average depth x 7.48 = total Gallons
Circular Pond: Lamda r 2 x average depth x 7.48 = Total gallons in Pond
Approximate Gallons of Water in a Stream
Lenght x Width x .25 x 7.48 = Gallons in a stream
Electrical Consumption
Amps x Volts divided x .10(avg. kw per. hour)x 24hrs x 30.4 days = Monthly costs
Conversions to help with electrical calculations:
Watts=voltsxamps Amps =watts divided by volts
Calculating Liner Size
2xpond depth plus Maximum Pond Length plus one foot extra = Liner Length
2xPond depth plus Maximum Pond Width plus one foot extra = Liner Width
Rock and Gravel Caluculations
Quantity of Boulders used in the pond(tons)=lenghtx width divided by 65
Quantity of 1/4 to 3 inch gravel used in the pond (tons) = tons of boulders used x .45
Quantity of boulders used in a stream (Tons) = 3/4 ton per 10 feet of stream length
Quantity of 1/4 to 3 inch gravel used in the stream(tons)= 1/2 ton per 10feet of stream length.
Approximately 3/4 to 1 1/4 tons of boulders to build around the face of your standard BioFalls filter.