Atlantic Flexible Hardscape Basin User Manual

Flexible Basin Installation Manual

Includes Models:
FF4216T FF4216G
FF6216T FF6216G
FF8216T FF8216G

1-877-80-PONDS

www.atlanticwatergardens.com

1. Preparing the Surround

Begin by constructing the garden wall surround for the basin as per
manufacturer instructions. Atlantic’s flexible basins are designed to work
with 12” x 8” x 4” wall stones, minimizing the amount of cuts needed.
However, they can be used with any variety of stone.

The opening should be 24” deep (from front to back) and 15 ¾” – 16” tall. The
width will vary depending on the size of the basin (48”, 72”, or 96”). The center
of the bulkhead outlet will be 10” high and 9” in from the side of the basin
(Figure 1). Ensure that a space is left in the wall for bulkhead installation. The
hole should be 4” – 6” wide, depending on how you set the bulkhead. Backing
plates are provided to bridge gap(s) in the stone around the plumbing,
providing structural support to the basin.

When preparing the base under the basin, the ground must be compacted and
level. Sand or limestone screenings can be added to raise or level the base.
Ensure that there are no sharp objects that could puncture the basin.
Underlayment fabric can be installed below the basin for added protection.

Figure 1

9”

24”

10”

16”

2. Installing the Bulkhead

The Flexible Basin is equipped with one or two 1 ½”bulkhead fittings,
depending on the basin size. Install the bulkhead fitting(s) before setting the
basin. Remove the retaining nut and plastic friction washer, leaving the
rubber gasket on the body of the bulkhead fitting(s). The retaining nut is
reverse threads. Turn clockwise to loosen.

2

From the inside of the flexible
basin, insert the threaded end of
the bulkhead into the pre-punched

Figure 2

Friction
Washer

Rubber
Gasket

Bulkhead

hole in the flexible basin. This
will sandwich the rubber gasket
between the flange of the bulkhead
and the inside wall of the flexible
basin (Figure 2). Slip the 10” round
backing plate over the threaded
end of the bulkhead on the outside
of the flexible basin, followed by
the friction washer and the
retaining nut. Tighten the retaining
nut by hand and then finish off
with a half turn from a wrench.
Note that the retaining nut is
reverse threads. Turn
counterclockwise to tighten.

Retaining

Nut

Backing Plate

Flexible
Basin

3. Installing the Flexible Basin

Place the flexible basin within the stone surround, being careful not to disturb
the level base at the bottom. Starting at the center, use your hands to smooth
out the basin, working any excess slack towards the outside edges. Ensure that
the basin is tucked tightly into all corners, and place some stones around the
top edges of the basin to temporarily hold the basin in place (Figure 3). Begin
filling the basin with water.

Figure 3

3