Figure 3
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Figure 2
9.
Mix concrete, pour into hole, and insert post. Concrete
should be loose but not soupy and about four inches
below soil surface. Push post into concrete until the mark
on the post is level with the string line. Plumb with level.
10.
Drive remaining posts into ground. Place ground post
driver in top of post. Drive post a few inches, then check
for plumb. Continue until line on post is level with string
line.
11.
Add fill dirt. Fill in around cemented posts after concrete
has set.
12.
Install brace bands. Slide brace bands over the posts with
bolting side facing out. Installation may be easier if you
spread the brace bands apart with pliers. Push brace band
down to ground level.
13.
Bolt EZ-Clip to brace band. With EZ-Clip and bolt in hand,
place the EZ-Clip small end inside the brace band, then insert
bolt through holes of brace band and EZ-Clip. Tighten bolt.
*
Depending on if your tunnel has four- or five-foot bow spacing.
**
The depth will be determined by your specifications, but ex-
posed post above soil line should not exceed 2 feet. Plastic will
not go to ground if post exceeds these specifications.
table 3
table 4
Post
Above Soil
Post
Below Soil
Hole
Depth
12"
36"
40"
14"
34"
38"
16"
32"
36"
18"
30"
34"
Post
Above Soil
Mark from
Top of Post
12"
0"
14"
2"
16"
4"
18"
6"
Figure 4 (not to Scale)
5'
3'
4'
Post Depth Line
(If string is 12" above soil)
Hole Depth Requirement
18" on center
18" on center
5.
Check your angles with the 3-4-5 rule. Measure three
feet from the string intersection on one line, and four feet
on the other and mark both points. Adjust strings so the
measure from mark to mark is five feet. Repeat for each
corner. All diagonal measurements should match.
See
Figure 4
6.
Secure strings on batter board by marking position with
nail and wrapping.
7.
Mark string every four or five feet.
*
Dig holes where you
plan to add concrete for posts. We recommend concreting
at least every other post, starting from the corners. You
may choose more or less concrete depending on soil
structure and wind exposure.
See Table 3 and Figure 4
8.
Mark posts for depth line. Mark each post according to
Table 4.
**
One side of your tunnel must have the swaged
One side of your tunnel must have the swaged
ends of the posts facing up and the other side must face
ends of the posts facing up and the other side must face
down. Mark posts accordingly.
down. Mark posts accordingly.
See compariSon on leFT
Step 12
Step 13
Swaged
Non-swaged
=
Recommended
=
Recommended
table 2
Distance Between Ground Posts
Bow
Spacing
50-ft
Tunnel
100-ft
Tunnel
4-foot
50"
48"
5-foot
60"
60"
4
5
