d)
Select pebbles F to I and arrange behind the front row of pebbles,
ensuring that flame paths as indicated below are not interupted.
.
(See fig. 13 below)
Fig. 13
e)
Select pebbles K, L & M and arrange along the rear of the
fuelbed, using the ribs in the rear of the fuelbed as a guide for
placement. (See fig. 14 below)
Fig. 14
f)
Select the two small pebbles (J & N) and position to fill the gaps at each
end of the third row of pebbles, as shown above in Fig. 14
19
Pebble F
Pebble G
Pebble H
Pebble I
Pebble K
Pebble M
Pebble L
Pebble J
Pebble N