PP filter geotextiles should be matched to the soil and drainage arrangement they serve. PP filter geotextiles allow water passage while meeting the soil-retention requirements established for the project. Choosing a filter by weight alone does not identify its openings, flow behaviour or suitability for the surrounding material.

When comparing a proposal with nonwoven geotextile fabric, use a hydraulic and mechanical property schedule rather than fabric appearance. This article helps buyers organize a filtration enquiry around the soil interface, intended water path and evidence required by the responsible reviewer.

Identify what is being filtered

Describe the soil touching the fabric and the drain or granular layer on its other side. Provide relevant investigation or material information. Filter selection is tied to that interface, so a fabric chosen for a different soil is not automatically transferable. If soil conditions vary across the site, identify the areas requiring separate consideration.

State the drainage conditions

Show the intended water direction and drainage route. Ask the reviewer which hydraulic properties and acceptance criteria apply. Keep water-flow measurements associated with their test method and conditions. A headline flow number is incomplete if it cannot be interpreted for the actual filter position and surrounding construction.

Check construction survivability

Describe handling, cover placement and the likelihood of damage before the fabric is concealed. The filter must remain continuous to carry out its intended function. Include repairs, joints and details around pipe connections in the installation method. Do not assume that a product meeting hydraulic criteria can tolerate any construction equipment or placement sequence.

Compare supplied data consistently

List opening, flow and mechanical requirements identified by the specification, with units and test methods. Ask for results for the actual PP fabric offered. A stronger-looking fabric or higher GSM should not replace a failed or missing hydraulic requirement. Have ambiguous results reviewed before the product is accepted as an equivalent filter.

Issue a soil-specific enquiry

Send Suneco New Materials the soil information, drain section and required grade properties. Add roll layout and quantities after the connection details are established. This turns an open-ended request for filter fabric into a defined purchasing brief that can be checked at submission, delivery and installation.