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PerformancePro Pumps
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 PerformancePro Pumps is pleased to offer you three great pump lines designed specifically for ponds, water gardens,... |
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Pond Pump Accessories
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 Prefiltration is extremely important. Solid waste accumulates daily in a pond and is the number one problem for fil... |
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Pondmaster X-Series
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 Pondmaster has emerged as the premier pond pump manufacturer in the United States. Unlike many manufacturers, Pondm... |
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Primer Pots Leaf Baskets
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 We offer a few different options of strainer baskets for those applications at demand debris interceptions as well ... |
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Rainbow - Lifeguard
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 These top-of-the-line pumps are ideal for a wide variety of applications including recirculating systems, filtratio... |
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Sequel Pumps
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 For the ultimate pond, you must have the perfect pump. These external pond pumps by Sequel will provide the reliabl... |
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Sequence Pumps
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 Sequence® pumps are the leader in high efficiency and performance. Sequence® is the name you can trust to ... |
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Choosing the right water pump for your pond can make all of the difference in the world. Just because a pump may cost less to buy, it is not always the way to go.
The most important thing to remember is the electrical usage when looking for a water pump for your pond.
In order to maintain a healthy environment for your Koi pond or water garden, you MUST run your water pump through your filter 24 hours a day, 7 days a week.
So it is important to pick the right water pump for your Koi pond or water garden. Water pumps have variances in electrical usage and electrical costs.
The following formula will assist you in determining how much you will spend (approximately) per month to run the pump you select.
Formula:
Amps x Volts = Watts
Watts x 744 and divide by 1000 = KWH per month
KWH per month x Cost per KWH (located on your electric bill) = Cost per month
Or feel free to use our handy pump cost calculator
Step by Step Instrucstions for Sizing a Pump:
Step 1: How to determine your desire flow rate (i.e. gallons per minute (gpm) or gallons per hour (gph) [Multiply gpm x 60 = gph] Refer to Table 1: Waterfall Flow Estimator or Table 2: Formulas for Calculating Pond Size in gallons on reverse side of this page.
Ask? What is the width of the waterfall and how thick is the desired water going over the edge of the falls.
Example: 5' wide waterfall with 1/2" thickness at the edge requires 63.3 gpm
or...
Determine the size of the pond and how often this water is circulated
Example: A rectangular pond 8' wide x 10' long x 6' deep is 3600 gallons (8 x 10 x 6 x 7.5 = 3600 gallons). This pond re-circulated once per hour = 60 gpm flow rate.
Step 2: Understanding "Total Dynamic Head" (TDH). How much resistance to the flow of water will the pond system produce? TDH is the total sum of three ingredients: Static Head + Friction Head + Pressure Head.
Head is another term for "pressure". Pressue is expessed in pounds per square inch (psi). 1 psi=2.31 feet of head.
Example: Barometric Pressure at Sea Level is 14.7 psi x 2.31 = 34 feet of head
Step 3: How to determine static head: measure highest point in feet above the surface water level of the pond (ususally the discharge at the waterfall but can be the point between).
Step 4: How to determine pressure head: pressure head is the resistance to flow as the water travels through an appliance like a bead filter, heater, or UV light. If the filter manfacturer does not provide this information we usually estimate from 7 to 15 feet for flows between 20 and 80 gpm through 1 1/2" or 2" valves and 7 to 15 feet for flows between 60 and 130 gpm through 3" valves. (This resistance to flow will increase as a filter becomes dirty and decrease after back washing. Generally, it is better to dedicate one pump to the appliances so that they do not affect the appearance of the waterfall). UV lights generally add only 1 or 2 feet of head.
Step 5: How to determine friction head: friction head is the resistance to flow that produced by the diameter of pipe per 100' feet of pipe. It also increases by the number of fittings, elbows, valves, and unions used in the run of pipe. (Flex hose is preferred by many because it helps to limit unnecessary friction loss). In most systems we never recommend pipe with less than a 2" inside diameter. Flow rates above 60 gpm are signiicantly enhanced by using 3" pipe.
Review friction los chart to determine your friction head. Example: For the desired visual effect my waterfall requires 63.3 gpm and I am using 3" diameter pipe. The total length of pipe is 25'. Connecting the row for 60 gpm with column for 3" pipe equals 0.85' of friction head per 100' of pipe. We have 25' so muliply 0.85 x .25 = .2' friction head. Remember to add the linear values found on the bottom of the chart to your overall pipe length. Example: 10' of 3" pvc plus 1 standard 90 degree elbow (8') equals an overal length of 18'.
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FRICTION LOSS IN PVC FITTINGS IN EQUIVALENT FEET OF STRAIGHT PIPE
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| PIPE SIZE (IN) | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 3" | 4" |
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90 Degree Elbow
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2.0
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2.25
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4.0
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4.0
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6.0
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8.0
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12.0
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45 Degree Elbow
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1.0
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1.4
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1.75
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2.0
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2.5
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4.0
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5.0
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Insert Coupling
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0.75
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1.0
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1.25
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1.5
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2.0
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3.0
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4.0
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Gate Valve
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.4
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.6
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.8
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1.0
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1.5
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2.0
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3.0
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Male-Female Adapters
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1.5
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2.0
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2.75
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3.5
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4.5
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6.5
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9.0
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Tee - Flow through Run
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1.4
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1.7
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2.3
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2.7
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4.3
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6.3
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8.3
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Tee - Flow through Branch
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5.
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6.0
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7.0
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8.0
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12.0
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16.0
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22.0
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Step 6: Add SH + PH + FH to determine Total Dynamic Head. 5' static head + 10' pressure head + .2' friction head equals 15.2 TDH.
Step 7: Locate your pump on the performance curve. A flow rate of 60 to 63.3 gpm with 15.2' tdh requires Artesian A1/3-56 pump (Reference performance curve and pond illustration). Head in feet is read on left vertical line (y axis) and flow is read in gpm on the right horizontal line (x axis).
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WATERFALL FLOW ESTIMATOR (TABLE 1)
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| WIDTH OF WATERFALL | 1/8" | 1/4" | 1/2" | 3/4" | 1" | 1 1/4" |
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6"
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0.75
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2.22
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6.23
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11.38
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17.37
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24.09
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1'
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1.55
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4.46
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12.57
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23.06
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35.34
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49.23
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2'
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3.13
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8.95
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25.25
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46.40
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71.28
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99.51
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3'
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4.72
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13.40
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37.93
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69.75
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107.22
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149.79
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4'
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6.30
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17.92
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50.61
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93.10
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143.16
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200.10
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5'
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7.90
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22.42
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63.29
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116.45
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179.10
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250.35
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6'
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9.50
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26.89
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75.97
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139.80
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215.04
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300.63
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7'
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11.10
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31.30
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88.65
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163.15
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250.98
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350.91
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8'
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12.60
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35.88
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101.33
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186.50
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288.92
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401.20
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