30
e)
Select pebbles (J & N) and position to fill the gaps at each end of the
third row of pebbles, as shown below in Fig. 27
Fig. 27
f)
Select the remaining pebbles K, L & M (which are slightly larger that the
other pebbles) and arrange along the rear of the fuelbed, using the ribs
in the rear of the fuelbed as a guide for placement. (See fig. 28 below)
Fig. 28
J
L
N
M
K
