J_2024 05 09_West Orange Stormwater Management Plan

Aqua-Swirl™ Installation Routine installation steps for the Aqua-Swirl™ units involve preparation and excavation of the area that is to contain the Aqua-Swirl™. This includes grading, leveling, and compacting the base material before lowering the unit into the excavation and connecting the Aqua-Swirl™ inlet and outlet stub-outs with appropriate pipe couplings. Prior to shipping, the purchasing contractor provides written confirmation to install AquaShield™ products in accordance with manufacturer's specifications. Step 1 — Excavation and Bedding The trench and trench bottom shall be constructed in accordance with ASTM D 2321, 6, Trench Excavation, and Section 7, Installation. The excavation pit is best positioned slightly offset of the center line of the incoming drain pipe trench because of the tangential inlet pipe connecting to the Aqua-Swirl™. m The Aqua-Swirl™ shall be installed on a stable base consisting of 12 inches of Class I stone materials (angular, crushed stone or rock, crushed gravel; large void content, containing little or no fines) as defined by ASTT'1 D 2321, Section 5, Materials; and, compacted to 95% proctor density. All required safety precautions for AquaSwirl™ installation are the responsibility of the contractor. •> m On-site excavation Step 2 - Pipe Connection Devices Couplings to and from the Aqua-Swirl™ shall be supplied by the contractor and shall be Fernco®, Mission™ or equal type flexible boot with stainless steel tension bands or equal. Using a metal sheer guard will protect the flexible connector. i* . V •-tv 4"; ,.r§."* "£>■ So' The coupling between the AquaSwirl™ and the pipe