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Installation Procedure for H-20, HS-20
Using the Traffic-Rated Vault Technique
Unloading Instructions:
Upon delivery, inspect FujiClean Treatment System, both outside and inside for possible damage
incurred during transport. If you find damage, or have a question, please contact your distributor
immediately.
Required Preconditions for this Installation Technique
Seasonal high groundwater depth must be less than 3’3” (1000mm).
Total height from ground level to adapter ring should be 24 inches or less.
Bearing power of soil must be 8.7 PSI or greater.
Traffic-rated Tank / Structure
•
Traffic rated precast tanks with custom cast covers are available in some
markets and are typically a cost-effective option.
•
Sand provides an appropriate base and support filler material.
•
Traffic rated precast tanks must include drainage.
•
H-20 rated drainage rings with H-20 rated covers may be used for
smaller, models CE-5 to CE-14 and CEN-5 to CEN-10.
Note: Uplift restraint is required for sites where high groundwater exists.
For sites without high groundwater, uplift restraint is not required.
Compact soil up to tank shoulder to prevent damage if traffic-rated tank
settles.
High groundwater site
Sites without high groundwater
Compact the soil up to
tank shoulder.
