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klexible Entry Boot lm"=� 5.2 Hole Saws Hole Saws are available in a variety of sizes to accommodate different a size flexible entry boots. Refer to the chart under Section 3.2 for the appro- priate hole saw for the type of flexible Za entry boot being used. 5.3 Urethane Foam When using OPW-FCS flexible entry boots in either high water table or sand backfill conditions, OPW-FCS recommends apply- ing an expanding urethane foam to the outside of the boots to help prevent excessive pressure from distorting the boots. WARNING:Read the instructions below thoroughly before applying foam. Before commencing work, obtain a can of PolycelO Insulating Foam or equivalent. Be sure to read and follow all instructions and precautions on the foam canister label. A clean dry cloth will also be needed for proper application of the foam. 5.3.1 Step 1 Locate and install the flexible entry boot according to the instruc- tions provided with each boot. Be sure all pipe connections have been made and the pipe is posi- tioned properly. Clean the outside of the entry boot with water as shown. Remove any debris from the surface. Allow to dry. 5.3.2 Step 2 Apply expanding urethane foam around the boot as shown. Observe all precautions and follow directions on the foam canister label. Proper application will leave approximately 1/2" of the foam beyond the surface of the boot. 5.3.3 Step 3 Allow the foam to set and dry for approximately 2 hours (or for the full recommended cure time as indicated on the foam canister label) before backfilling. 5.4 Entry Boot Sealants OPW-FCS does not recommend the use of sealants when installing entry boots on poly sumps, howev- er, the proper application of approved sealants on the sealing flange of our flexible entry boots is acceptable to OPW-FCS. The sealant(s) must be compatible with all contacted entry boot materials, all ground environments and any fuels that may be secondarily contained within the sumps being sealed. OPW-FCS in no way warrants the performance of the sealant and is in no way responsible for any environmental release resulting from the use of said sealant(s). All entry boots must F/e,*W( R KS BY DPW FUELING CONTAINMENT SYSTEMS be installed in accordance with OPW-FCS's written installa- tion instuction by a currently certified instructor. If you choose to use a sealant, OPW-FCS recommends the fol- lowing sealants for use with our entry boots and sumps: • Bostik 920 FS Fast Set, marine grade urethane sealant • SL -1100 Urethane Sealant • Thiokol 1100 Industrial polysulfide joint sealant • PR 1440 Class B Fuel Tank sealant Note: Be sure all manufacturers' installation/applica- tion instructions are followed. 6.0 FLEXWORKS SYSTEM MAINTENANCE The FlexWorks System is designed to provide reliable underground fuel transfer and short-term secondary contain- ment of leaked petroleum product. FlexWorks sumps and secondary containment pipes are not intended for long term storage of petroleum products. Liquid that accumulates in the secondary containment system must be promptly removed and properly disposed of. Operational third parry approved liquid sensors should be installed and maintained in each sump to reliably indicate to the operator that liquid is present in the secondary containment system. Once a leak is detected, the system must be shut down immediately and the source of the leak must be repaired. All liquid must be thoroughly flushed and cleaned out of the secondary con- tainment system at once. Inspect all system components at least monthly for leaks or damage, and repair or replace any suspect component as necessary. 6.1 ROUTINE SUMP INSPECTIONS Visual inspections of all containment sumps and components should be made on a routine basis to check for damage, water infiltration or for any signs of leaking product. An electronic or mechanical shut-off leak detection system is recommended for all containment sumps. When changing fuel filters at the dis- penser, make sure any spilled product is cleaned out of the bottom of the dispenser sump. Sumps are to be kept free of debris and spilled fuel. NOTE: Failure to remove fuel and liquids from contain- ment sumps may compromise the performance and integrity of the sump and its associated fittings and seals over prolonged periods of time. 7.0 GUIDE SPECIFICATIONS The following specifications are provided as general guide- lines to specify under sump entry seals for piping and con- duit. 7.1 Short Form The contractor shall provide liquid tight seals, as manufac- tured by OPW-FCS for sealing of all pipe and conduit entries into the contair�t sumps. Pipe and conduit`pritry seals shall be installed in accordance with manufactwers current installation instructions. MAR 31 2N6 =NWRONMENTAL 1 !r F?'r t `1�pDR7�j�r,1