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Filter selection - helpful hints and tips
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To choose the ideal filter for any pond you must first know the correct flow through the filter to maintain ideal water quality
for your pond. (Please remember that the pond size alone does not determine the filter or pump size without first taking into account the
many environmental and physical factors)
3 ways to get help to establish flow
- Fill in one of our e-mail help forms and let us do all the calculations for you
- Give us a call 1800 607 388 for expert advice
- Do it yourself and use our quick reference flow calculator for rough estimate
- Step one: Establish the required flow through the filter keeping in mind waterfall** height if any, or long hose**
- Step Two: Choose a filter from the chart below (Example if your pond requires a flow through the filter of 2,400 litres per hour, the Minipond 6000 would give the best result)
- Step Three: Choose a pump, they are listed below in order of quality and suitability
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Recommended flow through the filter - litres per hour
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10000 |
14000 |
Minimum flow |
2500 |
3500 |
Ideal flow - Also see hint 4 below |
3700 |
5500 |
Maximum flow - Also see hint 4 below |
5000 |
8000 |
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Suitable pumps for Midipond filters
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10000 |
14000 |
Most suitable pumps** |
Laguna Maxflo 5000
Project Easyjet 5000
Oase AquaMax 5500 |
Laguna Maxflo 7500
Oase AquaMax 8500
Pondmate 6000 DWP |
What makes a pump that is specifically designed for sending water to a filter (such as the pumps above) superior to a multi purpose pump such as Pondmate.
1) The cage design is turtle shell shaped to attract solids from 360 degrees 2) These pumps are intended to run 24/7 year after year
3) They have a vortex impeller capable of handling solids without blocking |
Other workable pumps*** |
Laguna Maxflo 7500
Pondmate 6000 DWP
OaseAquaMax 8500 |
Laguna Maxflo 9000
Pondmate 8000 DWP |
**Special note, if using a waterfall or a long hose between pump and filter the pump will need to be larger to allow for the reduced flow caused by the
head (pumping height, and/or hose length). If in doubt Fill in one of our
e-mail help forms and let us do all the calculations for you.
***Special note, if using these pumps, a water release kit may be required. So if in doubt please call us on 1800 607 388, or email us at
info@creativepumps.com.au. |
Pond Sizes |
10000 |
14000 |
No fish* Pond size - litres |
10,000 |
14,000 |
Some fish** Pond size - litres |
7,500 |
10,500 |
Medium fish***Pond size - litres |
5,625 |
7,875 |
Lots fish**** Pond size - litres |
2,812 |
3,937 |
Koi & Turtles |
2,812 |
3,937 |
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Aussie's additional thoughts
Tip 1: When calculating flow, always allow about a 15% flow loss
Tip 2: Place the pump at the opposite end of the pond to the water return, and in the deepest part of the pond.
Tip 3: Interpet offer a chemical to prime filter systems, a great way to hasten biological activity Interpet Bio start
Tip 4: If in doubt always choose a pump with less than the maximum recommended flow, Within reason the slower the water passes over the UV lamp and through the filter the
better the result. However, you can never have too much pond flow, so, by having a slightly oversize pump and releasing water directly back into the pond or on to a feature or waterfall through a "Tee"
with a flow valve, added circulation is provided for the pond.
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