Regency Irrigation is a leader in Calgary for Pond, waterfall, and water feature supplies. Serving the industry for over 10 years with top quality brands. Our certified staff can help you design your system, make sure the proper equipment is selected and show you how to properly install the equipment. Below is a list of products that we have to offer
The first step in determining your pond size is to figure out how many gallons your pond is. To do this you use the following formula. Width x Length x Depth x 7.5 = # of Gallons
10’ x 15’ x 3’ = 450 Cu. Ft.
450 Cubic Feet x 7.5 gallons = 3375 gallons - This will be required when determining the proper pump size.
It is important to make sure that the liner is sized appropriatley because you don't want to come up short, which could result in a leak or having to glue two pieces of liner together. To determine your liner size use the following calculation. (Length + Twice Depth + 3' ) = Total Length. (Width + Twice Depth + 3')= Total Width
EXAMPLE
Pond Size: 15’ Long x 12’ Wide x 3’ Deep
Length = 15’ + 3’(2) + 3’ = 24’
Width = 12’ + 3’(2) + 3’ = 21’
Note: Allow at least 1.5’ of overlap around the pond’s perimeter. 3’ included in Length & Width.
Light Flow = 100 gph per inch of spillway
Average Flow = 150 gph per inch of spillway
High Flow= 200 gph per inch of spillway
Width of Spillway x Desired Flow Rate = Total GPH
Examples for waterfalls with a 24” wide spillway:
Light Flow 24” Spillway x 100 GPH = 2,400 gph
Average Flow 24” Spillway x 150 GPH = 3,600 gph
High Flow 24” Spillway x 200 GPH = 4,800 gph

Only a certain amount of water can physically fit through any diameter of tubing. Despite the dimensions of the pumps discharge, tubing must be sized based on the amount of flow required.