FASTflo MINI Series, Руководство по установке

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WARNING: Tank flotation may occur if not installed correctly.
Installation in LOW WATER TABLE AREAS
1. To avoid flotation, the tank must be backfilled with cohesive compactable backfill - AP40 Crush metal or
similar and compacted in 300mm layers, keeping compactor approx. 150mm from side of tank.
DO NOT backfill with shingle or pea metal.
2. The tank must be gradually filled with water at the same time as the backfilling level, to ¾ of the way up
the tank.
Installation in HIGH WATER TABLE AREAS:
1. The tank must be approximately half filled with water ahead of concrete being poured around tank.
2. The tank requires concrete to be placed around tank ribs, around sides of tank.
Minimum amount of concrete:
250 litre Valve Box 0.2m³ concrete
330 litre Mini Tank 0.3m³ concrete
500 litre Double Valve Box 0.3m³ concrete
1000 litre Tank 0.5m³ concrete
1500 litre Tank 0.75m³ concrete
2000 litre Tank 1.0m
3
concrete
3. If further backfill is required, this should be compacted in 300mm layers (as above), BUT ONLY ONCE
CONCRETE HAS SET.
4. Tank should continue to be filled with water as the backfilling is done.
IMPORTANT NOTICE FOR INSTALLER WHEN
BACKFILLING HOLDING TANK