250 micron

The filter sheath plays a crucial role in preventing fine particles from entering the perforated drainage pipe and causing drain obstruction problems.
The 250 micron filter sheath offer better water flow than other products such as the 100 micron filter liner.
Superior tensile strength, which leads to a reduced risk of tearing and ensures that the product retains its properties.
Cleaning drains is much easier than with 450 micron polyester sheath, which is often more difficult to clean because of silting.
Nonwovens are UV resistant.
Nonwoven geotextiles follow the movements of the drain while maintaining their physical, mechanical and hydraulic properties. Unlike a knitted fabric, they do not stretch or deform.

Better performance for filtration and permittivity

Choosing the right filter sheath

Depending on the type of soil to be drained or the backfill material used, Soleno will recommend (or not recommend) the use of filtering sheaths:

None: in the presence of a clay soil or a sandy clay soil or when clean stone is used as backfill around the drain.
100 microns: in the case of soil containing sandy or silty soil or when a draining sand is used as backfill around the drain.
250 microns: in the case of soil rich in fine and medium sand.
450 microns: in the case of a soil containing coarse sand to gravel.

Because of their three-dimensional construction and filtration openings, nonwoven geotextiles are versatile and allow for the filtration of several types of soil, unlike a woven geotextile
which is limited to one only.
The primary functions of nonwoven geotextiles in an agricultural drainage application are filtration and drainage.
Their composition prevents the infiltration of fine particles, thanks to its smaller openings.

Data Sheet – Drain Type 2, Type 3 & Mega 3

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Discover our most recent projects with the 250 microns. Results on the field!

33% more perforation area than Type 3 drain: the size and number of perforations of the Mega 3 drain allow groundwater to be captured and evacuated as quickly as possible.
Increased protection during torrential rains: allows greater protection against damage caused by excess water.
Designed to guarantee maximum rigidity in the drain, while offering the largest perforation area than the Type 3 drain.
In the presence of iron ochre, the shape and size of the Mega 3 sluice reduce the possibility of clogging and obstructing the perforations and facilitate cleaning when necessary.