You're proposing a Double Loop instead of the Girth Hitch I have pictured?
Well, yeah, I guess that would be one way, which hadn't
occurred to me.
What I see wrong is this: the support structure goes from 3-lines
across to a single strand weak point (at whichever knot).
Rather,
replace the
girth hitch (which could equally be a
clove h. )
with a
pile hitch-like anchorage built w/
round turn on the vertical
pipe and
half-hitch on the horizontal (this orientation because the
former would be more susceptible to being pushed around the elbow?),
and now twin strands run towards the lower pipe turn --which one can
make and then you make a tensioning structure between the ends
on the open span (as you have).
.:. This gives 2 strands across the entire span, no single-strand weak spot.
Alternatively, one could
girth the vertical pipe and then
half-hitch (with the twin lines) the horizontal --might be simpler
to tie and better in abrasion/chafing at the point of crossing
for the half-hitch's feed into the span.
--dl*
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