Oase Biopress 10000l set

This is my Oase Biopress 10000l set bought from Maidenhead Aquatics approximately 12 months ago. It has been running my pond for the last year without any issue. I decommissioned it last weekend, and have washed through all filters and bio matter. I have replaced the UV bulb simply because it is a year old. The 4 sponges are all original Oase and I have 1 spare large sponge that I can include. The Pump is the 3500 that is sold with the set and all are in good working order. C