Double filtration tension frame sediment control filter

A sediment control dual filter method comprising

• providing a first elongated geotextile panel comprising a sleeve and a flap extending from the sleeve;
• providing a first self-supporting elongated frame with long frame edges;
• assembling a first filter module by
• over-bending the frame,
• inserting the over-bent frame into the sleeve,
• releasing the over-bent frame and permitting a spring action in the over-bent frame to force the long frame edges apart, thereby internally tensioning the sleeve over the frame in order to provide a leading filter surface on the outside of the sleeve in proximity to the flap, and a trailing filter surface on the inside of the sleeve opposite the flap;
• attaching the first filter module to a ground surface, such that the flap is positioned level or uphill from the sleeve.

A sediment control filter kit comprising

• a plurality of filter segment components comprising
• a plurality of elongated geotextile panels, each panel folded lengthwise and comprising
• an upper layer,
• a lower layer,
• an attachment seam, the attachment seam connecting the upper layer and the lower layer, the attachment seam forming an elongated first flap portion, and an elongated sleeve, the sleeve comprising
• a base having a first base end and a second base end, and
• a raised portion extending upwardly from the first base end and the second base end;
• a plurality of self-supporting elongated frames, formed by bending a flat polymer or wire frames, each elongated frame having a substantially-open cross section and a raised portion and comprising
• a leading longitudinal edge, and
• a trailing longitudinal edge spaced apart from the leading edge:
• and
• a plurality of hold-down elements.