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Typical Pebble Layout for Bow Shaped Custom 16 or Custom 18
Trays
FRONT PEBBLES
(J or E)
AERATION
TUBES
FLAT
PEBBLES
(H)
PILOT
FIRST LAYER
K
K
K
K
A
B
A
B
SECOND LAYER
LARGE
PEBBLES
B
A
B
A
D
MEDIUM PEBBLES
(C, D & F)
LARGE
PEBBLES
FRONT AND THIRD LAYERS
B
D
D
D
MEDIUM PEBBLES
(C, D & F)
SMALL PEBBLES(G)
(IF SUPPLIED)
TOP LAYER