0.625" Inner Diameter / 1.102" Outer Diameter x 30' piece of weighted PVC tubing that is heavy-duty with a thick wall, this weighted PVC tubing remains flexible even in the coldest water. Durable & crush-resistant for years of reliable service in any water feature. Self-sinking weighted hose for easy, tangle-free installation.This superior tubing is fish & wildlife Safe and engineered to prevent cracking, splitting and kinking. FAQs & Calculations to Help Select the Correct Kit. How Many Gallons of Water does My Water Feature Hold? Length x Width x Average Depth x 7.48 = Gallons Example: A rectangular pond 15' long, 10' wide and 1.5' Deep Pond is... 15' x 10' x 1.5' x 7.48 = 1683 Gallons.
Length x Width x Average Depth x 0.8 x 7.48 = Gallons Example: An oval pond 15' long, 10' wide and 1.5' deep is... Length x Width x Average Depth x 7.48 =Gallons Example: 15' long, 10' wide and 1.5' Deep Pond 15' x 10' x 1.5' x 7.48 = 1683 Gallons. Length x Width x Average Depth x 0.25 x 7.48 = GALLONS =Gallons Example: 15' long, 10' wide and 1.5' Deep Pond 15' x 10' x 1.5' x 7.48 = 1683 Gallons. How Big of a Pump Do I Need? Minimum pump size is determined by pond type, water volume, head height and friction loss.The minimum pump size recommendations are. Water Garden, Few Small Goldfish. Circulate total pond water valoume every 2 hours. Example: 2,000 GPH pump for a 3000-gallon pond with 2' waterfall. Fish Pond, Several Small Fish. Circulate total pond water valoume every 1 hour. Example: 3,800 GPH pump for a 3000-gallon pond with 2' waterfall. Koi Pond, Several Large Fish. Circulate total pond water valoume every 3/4 hours. Dynamic head pressure is found by taking the vertical height of your waterfall; the distance between where your pump is (typically in the skimmer) and where your waterfall is, and adding the static head pressure (pipe and fittings) 1' for every 10' of tubing and 1' for every elbow or "T" fitting. Example: 3' (vertical height) + 2.5 (25' of tubing) + 2' (for 2 elbows) = 7.5' of Dynamic Head Pressure Note: It is important to take into consideration while calculating how much flow will be at the top of your waterfall by accounting for the head height due to the laws of fluid dynamics. Please refer to the flow chart above to help choose the correct pump. What Size Tubing Do I Need? Customer service is our business. We have been satisfying fish pond, water garden, and backyard waterfall enthusiasts for over 25 years!
We're glad to assist you with your pond building project - from start, to finish! The Half Off Ponds Team. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Ponds & Water Features\Pond & Fountain Fittings & Pump Parts". The seller is "pond-depot" and is located in this country: US. This item can be shipped to United States.