Pond sludge filter bag 400 µm – pre-filter for sludge vacuums and pond cleaning

Rapid coarse cleaning with maximum water flow

The WINKLER filter bag for pond sludge, with a filtration fineness of 400 µm, is particularly suitable for the rapid removal of coarse pond sludge, leaves, and organic deposits. Thanks to the highly permeable filter fabric, water flows through the filter bag very quickly, allowing large volumes of water to be filtered in a short time.

The 400 µm filter bag is primarily used for the initial cleaning of a heavily soiled pond. Coarse dirt particles are reliably retained, while the water can flow away almost unimpeded. This significantly reduces the cleaning time.

The 400 µm filter bag is particularly effective when used as a pre-filter in combination with finer filter bags. While the 400 µm filter bag removes coarse dirt, downstream fine filters can operate much more efficiently and require less frequent cleaning.

Typical areas of application

The filter bag with a 400 µm filter fineness is particularly suitable for rapid coarse cleaning and for applications with high water flow:

• Heavily polluted garden ponds
• Koi ponds
• natural ponds
• swimming ponds
• Cleaning work with a sludge vacuum cleaner
• Removal of leaves and plant debris
• Coarse pond sludge
• Pre-filtration before finer filter bags

This robust filter bag is ideal for quickly draining large amounts of sludge. Discover other variations and complementary accessories in our portfolio for home, garden & pond .

Function: Rapid, recirculating pond cleaning

The application is simple and efficient:

1. The contaminated water is pumped into the filter bag using a sludge vacuum or a pump.
2. Coarse dirt particles from about 400 µm upwards remain in the filter fabric.
3. The purified water flows directly back into the pond.

The 2.50 m length creates a large filter surface area, ensuring a particularly fast water flow. This allows even large amounts of sludge to be filtered quickly without the filter bag clogging up rapidly.

The 400 µm filter bag is particularly suitable as a first cleaning step in pond cleaning and ensures a quick relief for downstream fine filters.

Easy handling when cleaning ponds

After the initial cleaning, the collected dirt is particularly easy to remove thanks to the wide mesh structure. The included reusable cable tie allows for quick opening of the bottom, so that leaves and coarse mud almost fall out by themselves.

A key advantage of the 400 µm version: Cleaning the fabric is extremely time-saving. Since coarse particles cannot become deeply embedded in the pores, a quick rinse with a garden hose is usually sufficient. Simply turn it inside out, rinse, and the highly permeable bag is ready for its next use. The robust material can withstand even rough handling of plant debris, ensuring rapid readiness for large-scale cleaning operations.

The filter bag is designed for reuse, thus offering a sustainable and economical solution for the effective removal and disposal of pond sludge.

Which filter bag is the right one?

The choice of the correct filter fineness depends on how polluted the pond is and what cleaning result is desired.

The 400 µm filter bag is ideal for quick basic cleaning and is often used as the first cleaning step before finer filter bags are used.

Your advantages at a glance

• Very high water flow rate: Large quantities of water can be filtered in a short time.
• Ideal as a pre-filter: Removes coarse dirt and relieves the fine filter.
• Reusable: The robust filter fabric is easy to clean and can be used multiple times.
• Secure fixing: The opening is optimized for DN100 spigots and features a practical pull strap.

WINKLER filter bag for pond sludge: Technical details

Advice from a filter specialist

Is the highly permeable 400 µm version for coarse debris the right solution for your pond management? Our filter technology experts will be happy to advise you personally to find the perfect combination of high flow rate and effective particle separation.