Legacy - Model FLSVB-003 -Fiberglass Lift Station

All tank vessels shall be fabricated of fiberglass suitable for sewage catch basins. All walls shall be continuous and watertight and shall be supported by reinforcing members where required.  Fabrication and erection shall conform to the appropriate requirements. Connections shall conform to the requirements of the American Plumbing Code and shall develop the full strength of the member.

Materials of construction used in the tank vessel shall be commercial grade and shall either be evaluated as a laminate by test or determined by previous service to be acceptable for the environment.

The resins used shall not contain fillers except as required for viscosity control.  Up to five percent by weight of thixotropic agent, which will not interfere with visual inspection, may be added to the resin for viscosity control. Resins may contain pigments and dyes by agreement between the fabricator and the purchaser, recognizing that such additions may interfere with visual inspection of laminate quality.

The reinforcing material shall be a commercial grade of glass fiber having a coupling agent, which will provide a suitable bond between the glass reinforcing and the resin.

The tank vessel shall be of the laminated type construction. The laminate shall consist of an inner surface, an interior layer, and an exterior layer of laminate body.

The inner surface shall be free of cracks and crazing with a smooth finish and with an average of not over two pits per square foot, providing the pits are less than 1/8" in diameter and not over 1/32" deep and are covered with sufficient resin to avoid exposure of inner surface fabric. Same waviness is permissible as long as the surface is smooth and free of pits.  Between 0.010 and 0.020 inches of resin-rich surface shall be provided.  This will be a gel-cote surface.

A minimum of 0.100 inch of the laminate next to the inner surface shall be reinforced with not less than 20 percent or more than 30 percent by weight of non-continuous glass strands having fiber lengths from 0.5 to 2.0 inches.

The exterior layer of body of laminate shall be of construction suitable for the service intended and contain sufficient glass by weight to provide aggregate strength necessary to meet the tensile and flexural requirements. Where separate layers such as mat, cloth or woven roving are used, all layers shall be lapped a minimum of one inch. Laps shall be staggered as much as possible. If woven roving of cloth is used, a layer of chopped strand glass shall be placed as alternate layers.  The exterior surface shall be relatively smooth with no exposed fibers of sharp projections.  Handwork finished is acceptable, but enough resin shall be present to prevent fiber show.