Here it is the Ultrasieve Midi, a smaller version of the successful Ultrasieve III

The UltraSieve Midi is a Gravity Fed pre-filter to filter waste solids from the water via a bottom drain or through a skimmer, such as the Ultraskim. This technique is based upon the very successful Ultrasieve III, which incorporates a sieve-bend. A sieve-bend consists of hundreds of sharp stainless steel profile wires with very small slot openings where the water can go through but the solids stay on the sieve bend. In practice it works as follows: The water enters the Ultrasieve Midi via the Ultraskim or bottom drain and passes through the “auto-adjustable” dam and will go upwards and fall over the weir on to the Stainless Steel sieve-bend.

The water goes through the sieve bend and the waste solids will slowly go down to the waste area. At the waste outlet of the filter is a 2 inch male thread connection with end cap for attching a 2 inch slide/Ball valve to easily wash away the waste with water. When the water in the tank underneath the sieve-bend is not pumped away fast enough the water will raise which makes the floating system (auto-adjustable dam) go up to reduce the incoming water flow.

The pump will be connected to the 2 inch male thread with 63mm PVC fitting supplied. You can use a self-priming pump like a Sequence 12000S Pump or Speck Badu Top or a submersible pump that can be used out of the pond like the Oase Aquamax Eco 12000 or Oase Aquamax Start 8500 Pump.

An extra advantage of this Ultrasieve Midi pre-filter is that the water will be provided with extra oxygen, when it goes through the slots. Plus the mechanical waste is removed from the water itself.  Click here for more information and prices.