sera guide - My pond

10 Filter technology sera pond fil bioactive  suitable for operating brooks  can be dug into the ground up to the lid  backwashing for easy intermediate cleaning  automatic pollution display for back- washing or cleaning  tightly locked due to locking ring be- tween lid and body  Filter camber with 4 sponges in a row for stepwise filtration Pressure filters Besides the already mentioned biological filtration, pond filters also clean the water mechanically, i.e. unsightly floating particles are being retained by various filter media. You can basically distinguish between a pressure filter and a flow-through filter. The water is di- rected through the chambers under pressure in case of a pressure filter. 10

sera guide - My pond

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