Guide to Choosing a Pond Pump
Pond Water Pump
Everyone has different reasons for building a new pond in their garden or patio. Some simply want a garden water feature with or without a fountain effect, others want to keep fish from simple goldfish to beautiful koi carp.
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Pond pumps are aptly named; they pump water. It pumps or turns the pond water. The type of pond pump you need depends on the purpose, effects and size of your pond. A pond pump may not be necessary for example if you are creating a wildlife pond you can use specific plants to help keep the water clear. However a Koi pond requries that the water is turned every 1-2 hours and other ponds should be turned every 3-4 hours
When looking for a suitable pond pump keep in mind it must be able to pump the amount of water you have in your pond. Here is an approximate guide:
Work out how many litres of water you have in your pond:Width (m) x Depth (m) x Length (m) = x Litres. E.g:
- 2m wide x 1m deep x 1m long = 2000 litres
- 3m wide x 1m deep x 2m long = 6000 litres
When you know the water volume you can work out the pond pump output required litres per hour) bearing in mind the purpose (fish/no fish) as mentioned earlier
- A 2000 litre pond requires a pump with at least 1000 LPH output to circulate the water every 2 hours
- A 6000 litre pond requires a pump with at least 3000 LPH output to circulate the water every 2 hours
With me so far?
Pond pumps get more expensive the bigger the pond and you don’t want to make a costly mistake by choosing the wrong one! So you should ask at the pond pumps store for advice just to be sure.
It is always better to get a larger pump than you need, this is simply because once you have reached the limit of a smaller pump it can’t be turned up, but larger pumps can be turned down. So if you have a 2000 litre pond, don’t get a pump with a 1000LPH max output, opt for one a bit bigger.
You may also need other things from your pump such as a filter to clear small debris or remove things like blanket weed or you might also want a fountain effect. Because you will be asking the pump to work harder, having either of these will mean you need a bigger pump. However there are many fountain and filter pump combination pumps on the market today.
On a final note, Most pumps have the output in the name such as the Hozelock Titan Filter Pond Pumps or Fishmate Fountain Pond Pumps. These are combination pumps so you don’t need to do two separate sets of calulations for your pump and filter or pump and fountain.









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