(22) ADDITIONAL CHARGES FOR TANKS (if necessary): FITTINGS & ADAPTERS: Add the following list prices for the recommended VENT connections or extra outlet connections: $60.00 for 1 ½” or 2” male IPS threaded vent, $85.00 for 3” male IPS threaded vent, $120.00 for 4” male IPS threaded vent, and $200.00 for 6” plain-end pipe vent. In addition, if you need flanged connections in liu of the same size threaded connections, see price schedule #DWV-PP-7-11 for extra cost for flanges. If an extra inlet (or extra Ohio Code outlet) connection is requested, add twice the cost of the vent connection. Also, special piping adapters (e.g. glass, Duriron M/J or caulking or ...
You may order an extension to any tank, to increase the overall height of the tank, at the following additional cost: Double the base tank list price from about one inch extension to up to almost double the base tank height. EXAMPLE: #NT-55 has a I.D. height of 36”. It can be ordered from about 37” O.D. to about 71” O.D. for twice the #NT-55 tank list price. For higher extension, consult the factory on pricing. Special traffic covers are extra. Standard tank covers are not designed for any traffic or load bearing. Special covers are needed for flush floor, in ground installations.
However, tank extensions and special traffic covers NOT needed, if tank is installed in recommended concrete pit ...
(9) Vehicular Traffic Covers
Check with factory for frame height (which may be extended in the field).
(Standard covers on tanks, located below these steel manhole assemblies).
NOTES:
Check with Factory for special or larger assemblies.
Square manholes recommended in most cases.
Round gasketed & bolted (water tight units available, at extra cost)