Waterco’s award winning MultiCyclone is a brilliant pre-filtration device that works on the basis of centrifugal water filtration and is designed with no moving parts and no filter media to clean or replace. MultiCyclone pre-filters up to 80% of the filter’s incoming dirt load easing the workload of the swimming pool filter. As the MultiCyclone intercepts more and more dirt, the flow rate remains unchanged. The installation of a MultiCyclone as a pre-filter to a sand filter can reduce its backwash frequency to once per year, resulting in a saving of up to 7,000 liters of water per year for an average domestic sized swimming pool.