Pond pumps are submersible water pumps designed to run continuously, circulate pond water, power filtration, and drive water features such as fountains and cascades. Unlike standard drainage pumps, they use non-clog impellers and non-tox...
Pond pumps are submersible water pumps designed to run continuously, circulate pond water, power filtration, and drive water features such as fountains and cascades. Unlike standard drainage pumps, they use non-clog impellers and non-toxic oil so they can run safely in ponds containing fish, plants and other aquatic life. Our range covers everything from small garden ponds and ornamental water features through to large koi ponds, commercial water displays and special-effects installations on film sets. Pumps are stocked in the UK with next-day delivery available.
Pond pumps are submersible water pumps built for continuous duty in ponds, water features and ornamental water displays.
They are responsible for core jobs in any healthy pond: circulating the water or moving water through a filter to keep it clean, and driving features such as fountains, spouts, waterfalls and cascades.
Because they sit permanently in water containing fish, plants and bacteria, pond pumps are built differently from general-purpose submersibles.
A correctly sized pond pump is one of the most important pieces of equipment in any pond. It directly affects water quality, oxygen levels, and the health of fish and plants.
It is important to use a purpose-built pond pump rather than a general drainage or sump pump. The differences matter:
If a pond pump fails, replacing it with a generic submersible is a false economy and risks the entire pond.
The deeper read: what's in this range, how to pick, and when to talk to us before you buy.
As pond pumps are submersible pumps, they are commonly used for:
They are used wherever water needs to be circulated, filtered or displayed in a setting that contains aquatic life or runs continuously.
Most pond pumps are submersible: the pump sits below the water at the deepest point of the pond, drawing water in through a strainer, passing it through a non-clog impeller, and pushing it out under pressure.
Some use surface pumps instead, sited next to the pond and drawing water through a suction hose. The Speroni SWIMM is the example in our range. Surface pumps are typically chosen for very large ponds, natural swimming ponds, and installations where access for servicing matters.
Whichever style of pump is used, it is doing one of three jobs:
Many ponds have a combination. Larger ponds often run two pumps, one dedicated to circulation or filtration and one to the feature, to keep both jobs efficient.
The pump's head is the maximum vertical height it can lift water if there were no other losses. It tells you how high a fountain or waterfall the pump can drive. As a working rule, every 10 metres of horizontal pipework costs roughly 1 metre of head, so account for both height and run length when choosing a model.
A healthy pond ecosystem depends on dissolved oxygen.
Moving water draws oxygen into the pond and supports the beneficial bacteria that break down fish waste, leaf litter and other organic matter. Without circulation:
The bigger the fish stock, the more critical aeration becomes, which is why koi ponds need far more turnover than wildlife ponds.
The right pump is the one that turns over the full volume of your pond at the correct frequency for the type of pond.
Step 1. Calculate pond volume
For a rectangular pond: length x width x depth (in metres) = volume in m³.
For a circular pond: V = πr²h (Pi x radius² x depth).
Multiply m³ by 1,000 to convert to litres.
Step 2. Match circulation rate to pond type
Wildlife or natural pond
Full water turnover every 2 hours
Goldfish pond
Full water turnover every 1.5 hours
Koi pond
Full water turnover every 1 hour
Step 3. Calculate required flow rate
Pond volume in litres ÷ turnover time in minutes = required flow rate (litres/min).
Step 4. Add head for features
If the pump is also driving a waterfall, fountain or cascade, add the vertical lift plus 1m of head per 10m of horizontal hose run.
For a more precise figure, use our hose pipe friction loss calculator to work out exact pipework losses based on hose diameter, length and flow rate. This matters most on longer runs or smaller bore hoses, where friction loss can be significantly higher than the 1m per 10m rule of thumb.
Step 5. Choose a pump from the range above
Select a model that meets or exceeds both the flow rate and head required.
If you are at the upper end of pond size, such as large koi ponds, commercial features or natural swimming ponds, also see our Swimming Pool Pumps range, where the Speroni SWIMM sits across both categories.
Special Features
APP TPS / TPV Range
The most popular pond pump on our site. A balanced flow-and-head profile suits most domestic and medium garden ponds, filter feeds, and small water features.
APP MH Range
The MH includes interchangeable fountain heads, with the three tier or geyser head options - (MH250 only). Ideal for ornamental ponds and water features where the pump itself is the feature.
APP HD-15
A heavy-duty workhorse with flow rates up to 830 L/min. Designed for large ponds, dramatic cascades, vast waterfalls and commercial water features where standard pond pumps lack the volume.
APP Floating Tree
A floating pond and water-feature pump, used where a fixed submerged installation is not practical, or where water level fluctuates significantly.
Speroni SWIMM
Listed primarily as a swimming pool pump, the SWIMM is also suitable for pond circulation duties, particularly natural swimming ponds and large koi systems.
APP TPS / TPV Range
The most popular pond pump on our site. A balanced flow-and-head profile suits most domestic and medium garden ponds, filter feeds, and small water features.
APP MH Range
The MH includes interchangeable fountain heads, with the three tier or geyser head options (MH250 only). Ideal for ornamental ponds and water features where the pump itself is the feature.
APP HD-15
A heavy-duty workhorse with flow rates up to 830 L/min. Designed for large ponds, dramatic cascades, vast waterfalls and commercial water features where standard pond pumps lack the volume.
APP Floating Tree
A floating pond and water-feature pump, used where a fixed submerged installation is not practical, or where water level fluctuates significantly.
Speroni SWIMM
Listed primarily as a swimming pool pump, the SWIMM is also suitable for pond circulation duties, particularly natural swimming ponds and large koi systems.
