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Professional Building Supplies£36.05Visit shop Alliance Remedial Land Drain Filter Sleeve - 80Mm Diameter X 25Mtr
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B&Q£48.25Visit shop B&Q - Alliance Remedial Land Drain Filter Sleeve80mm Diameter25M
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The Alliance Remedial Land Drain Filter Sleeve is designed for professional landscapers, contractors, and DIY enthusiasts aiming to prevent soil-related blockages in underground drainage systems. By utilizing a high-quality knitted geotextile fabric, it effectively filters out sand and silt, ensuring that your perforated pipes remain clear and functional for years to come. While the sleeve is highly effective at improving system longevity, it is important to note that it requires proper tensioning during installation to ensure optimal performance without bunching.
| Model Part Number | FLR8025 |
|---|---|
| Brand | Alliance Remedial |
No, this specific sleeve is sized for 80mm perforated pipe. Attempting to force it onto a larger pipe will cause the material to stretch too thin, compromising its filtration capabilities.
Yes, it is suitable for typical residential and light commercial trench depths, provided the backfill is installed carefully to avoid tearing.
No, the sleeve is made from synthetic materials designed to resist decomposition and rot, ensuring long-term protection underground.
When installed correctly, the permeability of the geotextile is higher than that of the surrounding soil, meaning it will not restrict the water flow into the pipe.
Overlap the two ends by approximately 15cm, slide them over the pipe joint, and secure them firmly with cable ties to ensure no sediment can enter at the seam.
Ensure the pipe is dry and free of debris. If the pipe has protruding couplers or joints, wrap them with duct tape to create a smoother surface.
Work with a partner to pull the sleeve tight from both ends simultaneously, or use a small amount of water to lubricate the pipe surface slightly.
Use a heavy-duty geotextile repair patch or wrap the torn section securely with adhesive tape before proceeding with the backfill.
To install, ensure the perforated pipe is clean and free of jagged edges that might snag the fabric. Slide the sleeve onto the 80mm pipe like a sock, ensuring it is pulled taut so there are no folds or gathers. Once the pipe is fully covered, trim the excess length and secure the ends with plastic zip ties or heavy-duty tape. Avoid using harsh chemicals near the drainage area. If the sleeve is being used in a particularly aggressive environment, ensure that the surrounding backfill consists of clean, rounded aggregate rather than sharp, crushed rock to prevent physical damage to the filter material.
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