1. Core Functions: Quartz sand media traps impurities in water layer by layer, removing sediment, sludge, algae, fine suspended solids, insect eggs and organic matter from the water source. It protects downstream drip tapes, micro-spray tapes, nozzles and solenoid valves from clogging, serving as the primary pre-filter equipment for farmland, orchard and greenhouse irrigation.

2. Detailed Benefits

· Anti-clogging protection for drip irrigation: Intercept fine sand and sludge in water to avoid clogging of drippers and nozzles, reducing pipeline maintenance losses.

· Removal of algae and organic matter: Adsorb algae and aquatic plant residues that cannot be easily filtered by screen filters, preventing biofilm buildup and blockage inside pipes.

· Reduce loading on downstream filters: Pre-filter large impurities, lower the clogging frequency of disc and screen filters and extend cleaning intervals.

· Purify irrigation water: Prevent sediment deposition in pipelines and fertilization equipment, extending the service life of the whole fertigation system.

3. Application Scenarios: Widely used for primary filtration of water sources such as well water, river water and reservoir water, especially for regions with high sand content and abundant organic matter in water.

· Support large-area water supply: High flow capacity, suitable for centralized irrigation filtration in large-scale bases including farmland, greenhouses, orchards and landscapes.

4. Supporting Operating Features

Built-in backwash function: After the sand layer is saturated with trapped impurities, automatic or manual backwashing flushes out sediment and dirt. The filter media can be reused for a long time without

frequent consumable replacement.

5. Classification by Water Source

Well water: Mainly fine sediment; sand filtration can greatly reduce sand content.

Surface water from rivers, ponds and dams: contains sediment + algae + weed debris.Sand filter is mandatory. Using only screen filters will result in frequent clogging.