The Fishmate (Petmate) PUV pressure filter range has a unique backflushing system on the 10000 and larger models which compresses and cleans the filter sponges Hi folks, I purchased a Fishmate 8W UV + Bio external pond filter awhile back. I've misplaced the set up instructions and hoped to get the pond back in Fish Mate 2000 PUV Pressurized UV+Bio Pond Filter. by Fish Mate I've purchase Philips (325126) TUV PL-S 9 watt for $14.99 for the Fish Mate 2000 PUV; Provided that Fish Mate UV+Bio Pond Filters are operated in accordance with the recommendations and the instructions supplied, Pet Mate Ltd. guarantee clearImproves water quality and clarity for ponds up to 2,000 gallons. Includes 9 watt UV Clarifier, cleaning indicator, 3 universal connectors, & toggle switch FISH MATE 2000 / 3000 / 4000. ®. Pond Pump · Instructions pet-mate.com. +44 (0)1932 700 001. IMPORTANT SAFETY. INSTRUCTIONS. WARNING - To guard.