BMP Bio-Skirt Installation Instructions

1. Select the appropriate number of Bio-Skirts according to the size of the
®
SNOUT as follows: For 12" and 18" SNOUTs or NP1218 or NP1524 (use one
Bio-Skirt); For 24" and 30" SNOUTs or NP1830 or NP2430 (use two Bio-Skirts);
36" to 54" SNOUT (use three Bio-Skirts); for SNOUT sizes over 54" consult with
BMP application engineer.
2. To optimally position the Bio-skirt, it should be centered across the width of
the Snout, and placed vertically so that the blue webbing stripe with grommets
will float approximately at the same elevation as the static waterline (see photo
3). To do this, place one anchor bolt on each side of the SNOUT at the invert of
the pipe the SNOUT covers. If this is an existing Snout installation, follow the
instructions below to secure the mounting bolts and clips, directly onto the
structure wall to which the Snout is attached (see photo 1). You may also utilize
existing bolts on either side of the Snout if it will allow the Bio-skirt to float at the
static waterline.
3. Install the Anchor Assemblies and Clips s follows.

For Concrete Structures:

Mark the location of where the anchors will be placed:
(1) Drill a 3/4"hole into the base material to the required depth
(approximately 1-1/4" deep.)
(2) Blow the hole clean of dust and other material.
(3) Insert the anchor into the hole. Narrow end of cone must point out,
lead shield slides over cone.
(4) Position the setting tool or a 9/16 socket against the anchor outer
sleeve. (The outer rim of the tool or socket should seat onto the lead
shield rim.) Set the anchor by driving the lead sleeve over the cone
using several sharp hammer blows. Be sure the anchor is at the
required embedment depth (flush or slightly below face of concrete)
(5) Attach the clip, aligned vertically, onto anchor with the supplied bolt
and washer. (see photo 1)

Plastic Structure Install:

(1) Mark and pre-drill (To match holes in SNOUT
for the 14 x 1 1/4" SS self tapping hex drive screws provided in kit.
Install
approximately 10-15 pounds.
(2) Attach the clip, vertically, onto anchor via supplied bolt and washer.
(see photo 1).
3. Assemble the Bio-skirt tether, using the provided black adjustable hooks
and blue elastomeric cord (see photo 2). Cut cord to length as needed.
Bio-Skirt Installation Instructions
x 1" Neoprene Backed Washers on each screw and tighten to
®
) six pilot holes (3/16")