No, we feel like the metal wall of a vinyl pool setting on the ground is the bonding grid. All metal parts of the pool must be bonded.
Here is a portion of the document.....
We base our interpretation on #2
To properly mask stray voltage, an equipotential (stray voltage)
grid must extend under walking surfaces for 3 ft horizontally
from the water, Figure 680-23. The equipotential (stray voltage)
grid must be formed from one or more of the following:
(1) Structural Reinforcing Steel. Structural reinforcing steel of
the concrete permanently installed pool, outdoor spa, or outdoor
hot tub.
(2) Bolted or Welded Metal Pools. The walls of a bolted or
welded metal permanently installed pool, outdoor spa, or outdoor
hot tub.
(3) Other Methods. The equipotential (stray voltage) grid can
be constructed as specified in (a) through © below.
Here is the publication on grounding/bonding of pools. Look at page 26 for your situation.
Mike Holt Pool Document
Are we doing wrong???????