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Oasis Clear Pond Filters

21st Nov 2019

All 4 models of the Oasis Clear Pond come with very powerful and balanced to the filter, integrated UVC's. The UVC is built into the lid of the Clear Pond unit for safety, and to keep them neatly tucked away from the elements.

The job of a UV bulb is to flocculate (clump together) algae. Exposure to the UV light causes the outside layer of the algae cell to become damaged, and in turn this allows the algae particles to stick together.

The Clear Pond filters are then easily able to deal with the algae, resulting in a lovely clear pond.

To be able to maintain and make sure that the UV bulb is working to its optimum efficiency you need to change the UV bulb every spring. A UV bulb usually lasts around 8000 working hours.

The Oasis Clear Pond has clear hosetails which means that you can always check the UV to see if it is working. This is best done at night.

The hosetails on the Oasis Clear Pond will accept hose sizes from 20mm - 40mm. Make sure that you use the maximum size available as a smaller hose size will restrict flow, making the filter and your filter pump’s performance much less efficient and effective.

The clear pond comes with 5m of electrical cable.

The outlets on the clear pond use rigid 50mm plastic pipe which are sold in:

The Oasis Clear Ponds' Seven Stages of Filtration

The key selling point of the Oasis Clear Pond is the amount of filtration you get for the size of the unit. Oasis have based the design of the Clear Pond on usually much larger multi-stage koi filters, however they’ve compacted the multiple stages down to a smaller size and single unit to suit the general garden pond keeper. This approach has been extremely successful.

1. The first stage of filtration is as above, the water is pumped from your filter pump within your pond to your UVC, which then flocculates the algae.

2. The water is then pumped into the first chamber of the Oasis Clear Pond filter where as you can see from the above picture brushes are located. The brushes are designed to filter out all the sludge and heavy solids that get sent to your pond filter. Brushes are very easy to clean as you can use a hosepipe on them to rinse off all of the sludge. They also last for ages and by catching heavy solids they stop your foam layers from getting clogged up straight away - which prolongs the life of your foams and saves you money.

3. Once the water has passed through the brushes it moves underneath the middle chamber of the Oasis Clear Pond and up through the blue foams on the right hand side of the filter as seen in the above picture. These foams allow medium sized particles to be filtered.

4 - 6. Once the water has risen through the blue foams, it flows over the cut out holes in the middle chamber of your Oasis Clear Pond. Here the water is sent through yet more foams, three in all - these foam layers are responsible for filtering out all the algae, dust and pollen that may have been picked up by your filter pump. The fine density of the foams means they are excellent at performing this task. The foams also incorporate a pyramid shaped design which increases the surface area significantly, meaning you won't have to clean the foams out as much (when cleaning the foams make sure they are cleaned in a bucket of pond water, as they are in direct contact with the biological media).

7. Once through the foams the water is into the biological chamber with the flocor. Flocor is a corrugated tube with a high surface area that allows a good water flow through it. Due to the extremely large surface area of the flocor it allows a high concentration of friendly bacteria to cultivate in a small area. These bacteria help turn poisonous nitrite into nitrate which is a plant food. Without this bacteria the pond would struggle to maintain a healthy balance and would be unsafe for fish.

How to Clean the Oasis Clear Pond?

To give the Oasis Clear Pond a quick flush out of all the sludge in the bottom of the filter is simple. The first thing you need to do, which is vital, is switch your filter pump off so that no water is coming into the system.

Next release the sludge drain. This will empty all but the middle chamber of the Oasis Clear Pond, (there is a hosetail that can be screwed on here to attach a hose to take it to a flower bed). Once opened all the sludge and water will drain. When the water has stopped coming out of the unit just close the tap.

Next attach your hose pipe to the inlet which is marked stage 2 and switch your hose on. This will start to fill up the Oasis Clear Pond with tap water, (still avoiding the middle chamber). Now you can re-open the stage 1 sludge tap and this will clear even more sludge from the bottom of your filter. Repeat this process until the water runs clear through your unit.