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environ Tank Sump Manual 13.1 Short Form 11.2 Crushed Stone The contractor shall provide a surface Crushed stone is permitted providing access tank sump as manufactured by it shall be washed,cleaned and be of environ products, Inc. which is to be the free flowing type with an angular y�± installed under the street manhole to stone size between 1/8" and 1/2". !�� permit access to an underground (Meets ASTM C-33 paragraph 9.1 a'( '' storage tank's pump and plumbing requirements.) 7 components. Access sumps shall be installed in accordance with the F4 manufacturer's current installation instructions. In the event that the sump 11.3 Sand will be used in a high water table applications,the high water tank River or other approved sand is sump should be used. permitted only with high water or fiberglass base tank sumps. All sand 13,2 Long Form backfill material shall be washed clean and be free flowing. When backfilling, make sure sand is evenly distributed and 13.2.1 Design packed around the tank sumps. r•'' �� Tank sumps shall be of such a design that it is capable of IMPORTANT:All backfill material moving up or down within the skirt of the street manhole to should be dry and free from ice, prevent stresses to the tank and sump in the event of tank or snow and debris. Using material other than those ground movement. described above without written approval from Environ Products Inc. will void the product warranty. 13.2,2 Product Compatibility All components and accessories of the tank sump shall be chemically 12. POST INSTALLATION TESTING AND INSPECTION compatible with the products to be distributed and with chemicals found naturally in the ground environment. 12.1 Visual Inspection Upon completion of installation, tank sumps must be visually 13.2.3 Corrosion Resistance inspected to verify proper installation techniques were followed. All compression ring segments must be in place, All tank sump components which come in contact with the gaskets installed, fasteners tightened, flexible entry boots ground dnvir environment shall ls bh prevent non-metallic material or n. installed properly,joints sealed and covers in place. protected y 12.2 Hydrostatic Testing 13.2.4 Structural Integrity In addition to inspection of tank sumps, each unit should be All components shall be designed and constructed of materials hydrostatically tested.To properly test a tank sump,the follow strong enough for its intended use. Tank sumps shall not steps should be followed. collapse, crack or break due to ground or tank movement, or from backfill and high ground water pressures. 12.2.1 Testing Procedure Step 1: Fully assemble tank sump,including all joints and 13,2.5 Pipe & Conduit Entries sump penetrations. All tank sumps shall be fitted with pipe and conduit entry seals Step 2: Be sure fill material does not obstruct view of which are semi-absorbent to ground movement and sufficiently underside of sump. flexible enough to permit angled entries up to 15 degrees Step 3: Gradually introduce water into the tank sump. without leaking under liquid head pressures of up to six feet Step 4: Fill the sump to 4" above the highest joint or boot. Level should be no less than 24" Step 5: Inspect the outside and underside of the tank sump. 13.2.6 Liquid Tightness Note any leakage of water. All tank sumps shall prevent outside surface and ground water ny Step 6: If no leakage is observed after 30 minutes,drain or foriginat ng coming rom theinto container the rsumpprevent from a escaping into leaking product intothe pump out the tank sump. underground environment. Environ recommends hydrostatic Step 7:If joints or penetrations show leakage,drain or pump testing on all sumps after installation to check for proper sealing out the tank sump. Inspect and tighten joints or of joints and connections. penetrations that showed leakage.Re-conduct test. 13. GUIDE SPECIFICATIONS 13.2.7 Height Adjustability The following specifications are provided as general guidelines All tank sumps tank shall be l depths. height adjustable to accommodate diffeto specify tank sumps. 9