This was only used to pump clean water up into a trickle tower for 18 months, before I changed the set up. This can be used as a main filter pump, either in line (dry, outside of the pond) or fully submersed. Large koi skimmers (such as the one I have for sale see my other items) could also accommodate a pump of this size. Has a nice long 4-5m cable and UK plug. Let me know if you should have any questions.The item "Oase Aquamax ECO 15,000 Pond Filter Pump Submersible Koi Fish Garden Water" is in sale since Sunday, May 31, 2020. This item is in the category "Garden & Patio\Ponds & Water Features\Pond & Fountain Pumps". The seller is "mackerello" and is located in Ashford, Kent. This item can be shipped to United Kingdom.