Oase Swimskim 50 CWS Floating Pond Skimmer

Oase SwimSkim 50 CWS Floating Pond Skimmer

High Capacity Floating Surface Skimmer for Large Garden Ponds

The Oase SwimSkim 50 CWS is a powerful floating pond skimmer designed to remove leaves, pollen and floating debris from the surface of larger garden ponds. Designed for ponds up to approximately 50 square metres, the SwimSkim 50 helps maintain a clean pond surface while supporting overall water quality.

The skimmer includes an integrated pump delivering up to 3500 litres per hour which continuously draws floating debris into a removable collection basket. By removing organic material before it sinks to the pond floor, the skimmer helps prevent the build up of waste that can lead to poor water quality and increased algae growth.

In addition to surface skimming, the SwimSkim 50 also includes an integrated aeration system and a unique whirlpool function that helps direct debris toward your pond filtration system. These combined features make it an effective solution for maintaining larger ponds.

Effective Surface Debris Removal

The Oase SwimSkim 50 continuously removes floating material before it can sink and decompose.

• Leaves
• Pollen
• Dust and surface particles
• Floating plant debris
• Organic waste

The large removable debris basket collects this material and can be emptied easily. A convenient hookable ring allows the basket to be lifted out even when the skimmer is positioned away from the pond edge.

Built In Filtration

Below the debris basket sits a sponge filter which captures smaller particles that pass through the main basket.

This sponge also provides surface area for beneficial bacteria to colonise, allowing the skimmer to provide a small level of biological filtration alongside its mechanical debris removal.

Together these stages help support clearer and healthier pond water.

Floating Design with Automatic Water Level Adjustment

The SwimSkim 50 is designed to float on the pond surface and automatically adjusts to changing water levels.

Integrated float chambers ensure the skimmer remains correctly positioned at the water surface even when water levels fluctuate due to rainfall or evaporation. This ensures consistent debris removal without the need for manual adjustment.

Integrated Aeration System

The SwimSkim 50 features a built in Venturi aeration injector. As water is circulated through the skimmer, air is drawn into the flow which increases oxygen levels within the pond.

This additional aeration supports fish health and encourages the activity of beneficial bacteria within the pond ecosystem.

Continuous water movement also helps reduce the likelihood of the pond surface freezing during colder months.

Whirlpool Function for Improved Debris Movement

One of the distinguishing features of the SwimSkim 50 is its whirlpool function.

A bottom jet creates a gentle current which stirs up fine debris on the pond floor and directs it towards the pond filtration system. This helps prevent organic material from settling and breaking down within the pond.

As a result, the skimmer contributes not only to surface cleaning but also supports the overall pond filtration process.

Ideal for Larger Garden Ponds

The Oase SwimSkim 50 is designed for garden ponds up to approximately 50 square metres in surface area.

It is particularly useful in ponds surrounded by trees or planting where leaves regularly fall onto the pond surface. Continuous skimming helps keep the pond looking tidy while reducing organic waste entering the filtration system.

Key Features

• Integrated pump with 3500 litres per hour capacity
• Suitable for pond surfaces up to approximately 50 square metres
• Large removable debris basket with hookable lifting ring
• Additional sponge filtration stage
• Integrated Venturi aeration injector
• Floating design automatically adapts to water level changes
• Unique whirlpool function helps move debris toward filters
• Helps improve water circulation and oxygen levels
• 10 metre power cable for flexible installation

Technical Specifications

• Maximum pond surface area approximately 50 square metres
• Pump capacity 3500 litres per hour
• Aeration capacity approximately 600 litres of air per hour
• Power consumption 45 watts
• Basket volume 4.5 litres
• Minimum water depth approximately 40 cm
• Dimensions 450 mm x 400 mm x 390 mm
• Cable length 10 metres
• Voltage 220 to 240 volts 50 Hz
• Manufacturer warranty 2 years

Technical information

Aeration setup notes

Oase Swimskim 50 CWS Floating Pond Skimmer should be chosen as part of the complete air system, not just by litres per minute. Airline length, airline bore, diffuser depth, manifold taps and back pressure all affect the real airflow that reaches the pond or filter. A well matched aeration system runs more quietly, puts less strain on the pump and gives more dependable oxygen support.

• Use suitable airline size for the pump output and distance involved.
• Keep the air pump dry, ventilated and protected from flooding.
• Spread airflow across multiple diffusers on larger ponds where possible.
• Check diaphragms, filters and diffusers during routine servicing.

For koi ponds, moving bed filters and warm weather aeration, consistent airflow is often more useful than simply oversizing the pump. Balanced diffuser placement gives better circulation and helps avoid stagnant areas.

Helpful links and compatible products

Use these links to plan the rest of the system around this product. The right pump, pipework, UV, air supply, media or spares will make the installation easier to set up, maintain and service.

• View the full Oase range
• Browse pond skimmers
• Pond pumps
• Pond filters
• Browse Oase pond equipment

More useful ranges and guides

These related ranges and guides may help you compare options, choose the right accessories and plan the full pond system rather than viewing this product in isolation.

• Browse pond UV clarifiers
• Standard flexible pond hose
• Heavy duty flexible pond hose