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Selection of Pond Pumps – a way to find the suitable pond pump

The selection of the right Pond Pump depends on a variety of factors. On the one side the size of the garden pond is essential, on the other side the field of application plays an important role.

Do you want to operate a pond filter system? Is there a waterfall or a stream run? Do you wish to have a pond skimmer or a water ornament as for example a little fountain or the like?

Apart from that, a pond pump should operate as efficiently as possible with regard to energy, so that unnecessary energy costs can be avoided.
In most cases, the pond pump works throughout the whole year and round the clock so that you should take into consideration to acquire the most energy-saving pond pump when it comes to select the right one.

The capacity of the pond pump must be necessarily adjusted to the size of the pond filter. Any oversized flow rate will result in an overflow of the pond filter which is to be prevented at all costs.Moreover, you should take into account the pond´s circulation cycle as well as the period of time of the pond water in the pond filter.

According to the type of usage, the ideal circulation cycle depends on different factors: the fish population, aquatic plants, the quantity of sunlight or the desired water clarity. It goes without saying that, as the case may be, there are further components of the filter circuit that are to be coordinated, if necessary.

Basically, two distinctions are to be made, in all of which the opinions differ considerably in part.


1. Optimal Circulation of the Pond


The circulation cycle is defined as the time in hours for passing the entire pond contents through the pond filter.

The following information may serve you as a guideline:

Koi pond / Fish pond:

• 1 cycle per 3 hours
• 2 circulations in 1 hour (without plantings and with large fish population)

Garden pond / Plant pond:

Regarding a pond without fish, there is less circulation necessary. One circulation in a day can be taken as a guideline in order to enrich the pond water with oxygen and to keep the water in constant movement.

Swim pond:

In this case the circulation cycle is highly dependent on the planting and the individual claim.
The upper limit is to be made at 1 x in 2-3 hours, the lower limit at “no circulation”.


2. Resting period of the water in the pond filter / Filter volume


Here, the actual volume of the pond filter used in non-pressurized pond filter systems is interesting to focus on:

Item 50107 – SunSun CBF-350 Bio-Pond Filter = approx. 85 liters of volume
Item 50108 – SunSun CBF-350B Bio-Pond Filter = approx. 170 liters of volume
Item 50114 – SunSun CBF-350C Bio-Pond Filter  = approx. 250 liters of volume
Item 50167 – SunSun CBF-550 Bio-Pond Filter = approx. 110 liters of volume

After a period of 2-3 weeks there are nitrifying bacteria that colonize the filter sponges. They need quite a time to act on the water.
The aspirated period of time that the pond pump in usage requires to fill the pond filter completely once a time, should be with the above mentioned filter volumes between 1,5 minutes and 3 minutes.
With regard to a Mini Pond, a pond pump with a circulation capacity up to 1.000 liters per hour is sufficient. In this case it would be helpful for example to use a fountain pump with a filter. Small to medium sized ponds with an approximate size of up to 10 cubic meters require, at a circulations rate of about once a time every 2 hours, a pond pump delivering up to 5.000 litres per hour. In accordance with larger ponds the size of the pond pump is to be adjusted accordingly. Apart from the size of the pond, there are also to be taken into consideration the fish population and the flow rate that the pond pump loses when the water has to be transported from great depth or to higher altitudes. The average and the length of the hose in usage also affect the quantity of water that reaches the pond filter. The indicated values are meant to be a guideline and may help you to find the suitable pond pump for your garden pond.

Fountain pumps are a visual highlight in a garden pond and beyond that enrich the garden pond with oxygen. We also offer fountain ponds that are equipped with additional filters and UVC-clarifiers to the effect that the fountain pump represents a true surplus value for every garden pond.

In order to ensure a proper function of the pond pumps it is indispensable to clean them regularly. We recommend a weekly cleaning of the pond pumps. For this, the pond pump should be opened in order to remove any dirt stuck on the pump shaft.

For questions with respect to the cleaning procedure please do not hesitate to contact our support team.


Pond Skimmers

Caused by their decomposition, leaves, weeds and other debris floating on the surface of the pond water lead to turbidity and moreover promote the growth of algae. Certainly it is possible to remove these impurities with the help of a net from the water´s surface but depending on the season, this method is very time-consuming.

It is far more effective and less time-consuming to use a pond skimmer to do this task. Especially in the autumn season leaves and small twigs are a burden for the pond. Sinking to the pond´s ground they are responsible for the formation of fermentation gases and mud which in the following year leads to an increased growth of algae and green water in the pond.

A pond pump that is connected to the pond skimmer or that is directly installed in the pond skimmer produces a slight current, thus making the water flow towards the pond skimmer.

All dirt particles floating on the surface of the garden pond are sucked in before sinking to the bottom of the pond. Coarse particles accumulate on the pond skimmer´s sieve they can easily and quickly be removed from while cleaning the pond skimmer so that said contaminants do not pollute the pond.
The cleaning should be done regularly so as not to affect the cleaning performance.

There is a difference between a stand skimmer and a floating skimmer.

Stand Skimmer

They are firmly installed in the pond for example by placing gravel inside the stand. The water ring of the pond skimmer that rests on the pond´ s surface easily bridges water level differences of up to 100 mm, so that rain or evaporation do not affect the function of the pond skimmer.

Floating Skimmer

They are floating freely on the water´s surface, thus offering a good possibility to keep clean the large-sized ponds. For ponds that dispose of an extremely large surface it may be necessary to make use of several floating skimmers in order to keep clean the entire surface.

Depending on the type of pond skimmer, it is possible to either pump the water into a pond filter for further purification or to make the water flow directly back into the pond. The pond skimmer provides for an additional enrichment of oxygen in the pond and contributes to reduce the growth of algae.

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  1. Jebao SK-50 Standing Pond Skimmer Surface Leaves Collector up to 60m²

    • Stand Skimmer
    • height-adjustable 650-850 mm
    • Tolerance of water level 100 mm
    • For ponds up to approx. 60 m²
    Incl. 16% VAT, plus. Shipping cost
    SKU: 50119
  2. Jebao SK-40 Floating Fish Pond Skimmer Surface 35m² Pump 3000l/h 60W

    • Floating Skimmer with Skimmer Pump
    • Delivery capacity 3000 l/h - 60 Watts
    • For ponds up to 35 m²
    Incl. 16% VAT, plus. Shipping cost
    SKU: 50118
  3. Jebao SK-30 Floating Fish Pond Skimmer Surface 25m² Pump 2500l/h 45W

    • Floating skimmer with Skimmer Pump
    • Delivery capacity 2500 l/h - 45 Watts
    • For ponds up to approx. 25 m²
    Incl. 16% VAT, plus. Shipping cost
    SKU: 50117
  4. Skimmer Pond Set Free Standing Pump for 60m² 100000l 5 m Hose

    • ECO Stand Skimmer Set:
    • Sunsun Eco-Pond Pump up to 4000l/h - 65W
    • Jebao Floating Skimmer Leaves Collector SK50
    • UV-resistant 25mm (1")
    • Hose length: 5m
    Incl. 16% VAT, plus. Shipping cost
    SKU: 54901
  5. SunSun CSP-250 Floating Pond Skimmer Surface Fountain Pump 2500l/h 55W

    • Floating Skimmer with Skimmer Pump
    • Delivery capacity 2500 l/h - 55 Watts
    • For ponds up to approx. 40 m²
    Incl. 16% VAT, plus. Shipping cost
    SKU: 50106
  6. Surface Skimmer CSP-40 Standing Pond Skimmer Leaf Collector 40m²

    • Pond cleaning
    • Reduction of Algae
    • 40 m²
    • For various pond depths
    • Versatilely applicable
    • Easy assembly
    Incl. 16% VAT, plus. Shipping cost
    SKU: 51191

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*All prices are including VAT plus shipping costs