The OASE BioPress and FiltoClear pressurised pond filters offer superb cleaning performance in ponds and water features when correctly maintained. There are a few things you should check to ensure your filter is operating at its most effective. Both the OASE BioPress and FiltoClear require the UV bulb to be changed once every year and we recommend that this is replaced in the early spring to ensure the best performance during the warmer seasons ahead. Check the filter sponges are not deteriorated (i.e. flaky or crumbly) and also that the foams are not squashed or distorted inside the filter. If the foams are damaged, we recommend new OASE foams for guaranteed performance.
Check the UV Quartz Sleeve (the glass tube which covers the UV lamp) for any signs of moisture inside the glass. If this is spotted early, it is unlikely that any damage to the sensitive electronics within the ballast unit will occur. Clean the quartz tube and replace the rubber O-ring seal to prevent moisture entering beyond the glass sleeve. In very rare occasions, water may have reached inside the quartz and this may result in a failed ballast unit and is likely to require replacing. We stock OASE FiltoClear and BioPress UV Ballast Units to ensure fast delivery to get your filter back in operation.