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7. Pumps - Sizing and Choosing
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Moving water is one of the most appealing aspects of pond keeping. Selecting the right pump for the job is an important step in having a successful pond. Think ahead - most people add more and more features - filters, fountains and/or waterfalls - over time making adequate pumping an important issue. The pump is the life’s blood of the pond so this is not the place to cut costs. Pumps are under a heavy work load and must operate constantly and reliably 24 hours a day throughout the spring, summer and fall. Pumps that are too small for the job will clog more frequently, operate inefficiently and eventually fail. A pump failure can be devastating to the animal life in the pond.
When choosing a pump take into account the functions it will perform. Pumps vary widely in type, size and purpose. Fountains or still, quiet, unfiltered pools benefit from water movement by small pumps to inhibit the growth of string algae and to break the surface for oxygen exchange. Larger pumps are required to power waterfalls, filters and fountains and it is important to select the best pump for the job. The choice can be made to power water features with an individual pump for each feature or a single, larger pump can be chosen to power all the features in a pond. Sicce Pond Pumps are good, reliable pumps and are available in sizes for every application.

External or Internal?
Two types of pumps are commonly used for water gardens, internal or external. Internal pumps are placed on the bottom of the pond and are connected from there to filters, waterfalls and fountains. Internal pumps require protection from the debris that accumulates on the pond bottom. Placing the pump in a potting container filled with fibrous material to catch debris is a quick and inexpensive measure to extend the life of the pump. Sump- type pumps, like Syncra HF Pumps and SICCE Master DW Pumps, can handle larger debris but will perform better over a longer period of time with protection.
External pumps are situated outside the pond in some kind of protective housing and are connected from there to filters, waterfalls, and fountains. Like internal pumps, externals should be protected from debris entering the pump. An Aquarium Life Support Systems Intake Screen is an excellent pre-filter for larger internal and external pumps. Combinations of internal and external pumps for different functions are perfectly acceptable. Most pumps, whether internal or external, must not be run dry to avoid permanent damage to the motor.
For very large water features, when both flow and energy efficency are considerations, external pumps should be used. Priming pots increase efficiency when used in conjunction with external pumps. Dolphin and Sicce Pond Pumps make superior external pumps; considered by many Koi enthusiasts the best and most reliable pumps available.

SICCE Pond Pumps
Syncra Pond Pump - Includes fountain and intake filter
Fountain includes: waterbell, waterlily, single daisy, and double daisy fountain heads
A new range of pumps which ensure high energy savings, quiet operation, ergonomic design, powerful performance, resistance to harsh conditions, and are reliable.
Syncra Silent, with their innovative technology, are versatile with a range uses.
They are ideal for fresh and salt water aquariums, protein skimmers, calcium reactors, indoor & outdoor fountains, water-cooling and all submersible and inline applications which require high performance and total silence.
Thanks to Sicce's 35 years of experience, Syncra Silent are equipped with a synchronous motor and an advanced rotor which makes them efficient and silent . . . even more than a fish!
Advantages of Synchronous Motors by Sicce

See All Sicce Pond Pumps with Fountain Heads

Mi Mouse
SICCE created, first in the market, the Hi-Tech Line, which still remains a point of reference in the global market. The Hi-Tech Line includes completely submersible recirculation pumps useful for every type of aquarium, terrarium, internal or external fountain, landscaping construction, and for any application which requires the recirculation of water. Built in accordance with the most strict international safety standards, the pumps are easy to maintain and have incredible small dimensions for their elevated performance and reliability. The entire line is provided with a variable flow rate regulator as well as adaptors to connect flexible hoses from 13mm to 20mm. The compact dimensions of these pumps, make them ideal for use in small spaces.

See all Mi Mouse Pumps

SICCE Ultrazero Utility Pump
ULTRA ZERO is a submersible pump, designed and made for pumping cloudy water without large debris content, intended mainly for domestic use, in fixed applications or with manual operation, for draining basements and garages subject to flooding or for collecting rainwater, etc. It is a multi-purpose pump for domestic uses to solve all kinds of minor do-it-yourself problems in which water has to be eliminated or moved. No tools are needed to install it or for routine maintenance.

Easy to use, ULTRAZERO has a series of featuresÊthat make it very functional and extremely easy to handle. Great for water changes or pumping water in and out of aquariums, potable water tanks, water storage tanks, saltwater mixing containers, swimming pools, off swimming pool covers, draining basements and more.
SICCE Ultrazero Utility Pump

Syncra DW Pumps - A new range of pumps which ensure high energy savings, quiet operation, ergonomic design, powerful performance, resistance to harsh conditions, and are reliable. Syncra DW, with their innovative technology, are versatile with a range of uses. They are ideal for waterfalls, ponds, pond surface skimmers, water gardening, and drainage applications. Thanks to Sicce's 35 years of experience, Syncra DW are equipped with a synchronous motor and an advanced rotor which makes them efficient and silent . . . even more than a fish!
• CE & UL listed
• 3 year warranty
• Comes w/ 20ft. cord
See All Syncra DW Pumps

Micra & Micra Plus - are two fully submersible pumps driven by a permanent magnet type synchronous motor. Micra & Micra Plus are fitted with an interchangeable sponge filter and have variable flow regulation through a five way tap. Micra & Micra Plus can be connected to rigid piping with a 13mm inside diameter, or through the adapter supplied standard, to flexible hose of 12mm inside diameter. It is also possible to connect them with 9mm flexible hose and 10mm rigid pip thanks to the optional special adapter. The entire line is provided with a variable flow rate regulator as well as adaptors to connect flexible hoses from 13mm to 20mm. The compact dimensions of these pumps, make them ideal for use in small spaces.

See All Micra and MicraPlus Pumps

Factors to Consider When Selecting A Pump:
Head Pressure
Head pressure, the manufacturer’s rating of flow at a given height or elevation, and maximum pumping height must be considered when deciding on a pump. Flow rate reported by manufacturers is the maximum, no-load flow rate for the pump. Filters, fountain heads, waterfalls, plumbing and pipe and intake distance from the pond, combined with the maximum pumping elevation determine a pump’s final output.
 
Amperage Troubleshooting & Maintenance
the lower the amps the lower the operating costs a pump failure can be deadly to livestock. Periodic checks and following manufacturers' maintenance recommendations helps prevent these disasters.
Maximum Cut Off or Shut Off
the highest elevation the pump can reach Impellers
GPH Impellers do wear out. Danner Mag Drive and Pondmaster pumps, unlike other lines, have replaceable impellers. These pumps are energy efficent and have a 3-year warranty that covers the motor (not the impeller.)
gallons per hour of flow
GPM
gallons per minute of flow

Plumbing Pumps with Other Watergarden Equipment
It is always best to use larger plumbing to and from the pump than is required. Avoid 90 degree turns as much as possible, opting instead for sweeping spa hose (flexible PVC) or vinyl tubing. For very large water features, when both flow and energy efficiency are considerations, external pumps should be used. Dolphin and Rainbow Plastics make superior external pumps for watergarden use. Priming pots used in conjunction with external pumps further improve efficiency. Though more costly, Dolphin pumps are more energy efficient and are considered the best and most reliable by many Koi enthusiasts.

The diagrams below illustrate plumbing layouts for maximum performance of each feature.

Use the following pump sizes and plumbing diameters as a guide:
pumps up to plumbing diameter
up to 500gph 1/2"
up to 800gph 3/4"
up to 1800gph 1"
5000gph 1-1/2"
5000gph+* 2"+
* best installed by landscapers specializing in watergardens if you are not familiar with plumbing.
Plumbing an external filter with a UV sterilizer
 
 
Plumbing an external filter with a UV sterilizer and an additional pressurized filter

The diagrams below illustrate the filter and pump placement for high flow rate waterfalls.





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