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REPAIR PROCEDURES Leaks can occur if secondary containment joints are not properly bonded. Upon completion of required repairs and before putting the line back into service, always pressure test the repair work according to the procedures on page 17 to assure the integrity of the system. For damaged pipe and for leaking joints, the recommended repair methods are listed below. • Replaoing Leaking Two-Pieoe Seoondary Contain- ment Fittings - Do not use this procedure for containment crossovers. P?{a+,n FRAelg nasag ri.,ge ritnnpTbngn Example: 90' Secondary Containment Elbow When cutting out and replacing a secondary containment fitting, do not cut �4-- the internal primary product pipe. 1. Dissect the secondary containment (i fitting and secondary containment 4 i pipe around its circumference as shown by the arrows. Remove the a a containment elbow. 2. Create a pipe nipple at least 7" (180 mm) long on either side of the joint by making another cut around the ( car circumference of the containment pipe. 3. Using a sander, coarse file or 30-40 ----- grit Emery cloth, remove surface gloss from both ends of the nipples and the containment pipe. Sanded cat area must be a minimum of 3" (75 mm) in length. 4. Position the nipples between the new containment elbow and containment c""' "^`" LK7 sleeve couplings. NOTE: It may � si ec�purq be necessary to remove additional sections of the containment pipe to �i..__..... provide clearance for the coupling. 5. Bond the elbow and containment sleeve couplings into place according to instructions. Repairing Minor Damage to Pipe Follow the pipe patching instructions on page 11 of this manual when the damaged area is two inches (50 mm) or less in diameter. Y�Patch --ip `� Darnage I Repairing Minor Damage to Fittings Small repairs (pinhole leaks and leaks up to 1" in diameter) using 8088 Repair Kit: 1. Take pressure off the system and dry the area around the leak. 2. Sand an area 3" minimum on each side of the leak. 3. Cut three 3" x 3" patches from the glass supplied with the 8088 repair kit. 4. Mix adhesive per instructions supplied in the kit. 5. Paint adhesive on the sanded area of the fitting. 6. Apply the first layer of glass and wet out with adhesive. The glass may be wet out before it is applied to the leak area. 7. Repeat the previous step and apply another layer of glass. 8. Cure per the time listed in the adhesive kit instructions. Flange section or joint leak repairs (overwrapping entire fitting) using 8088 repair kit. 1. Take pressure off the system and dry the area around the leak. 2. Grind or cut flange sections off the clam shell secondary containment fitting and sand flush with the fitting body. 3. If needed, mix adhesive with filler to grout in any gaps or voids in the bond line or to create a smooth wrapping surface. 4. Per instructions in the 8088 repair kit, apply adhesive to the sanded area. Wet out glass and wrap around the fitting as though it were a section of pipe, centering the first layer over the joint and extending 2" past the end of the fitting onto the pipe. Apply tension to squeeze adhesive through the glass layer. For elbows and tee, slits may have to be cut in the center section for glass to lie flat. 5. Repeat previous step on the center of the joint and then the other side of the fitting extending 2" over the end of the fitting. When starting the glass, overlap the first wrap a minimum of 2". 6. Repeat two previous steps until three layers of glass have been placed over the fitting. 7. Cure per the time listed in the adhesive kit instructions. • Repairing Extensive Pipe Damage When damage is less than 2" (50 mm) long but more than 2" around the circumference of the pipe, the following repair procedures should be followed, If the pipe is buried, excavate a working area large enough to allow for repairs to be made. Use a secondary containment sleeve coupling to make this type repair. Containment sleeve couplings are 14" (350 mm) long. Do not remove more than 7" (175 mm) of containment pipe. CAUTION, When cutting out extensive damage in the containment pipe (only), be extremely careful not to damage the internal product piping. 1. After cutting free the darnaged section of containment pipe (no more than 7" ) 175 mm) long, slit the section of pipe in half and remove. 2. Using a sander, coarse file or 30-40 grit Emery cloth, remove surface gloss from both ends of the pipe. Sanded area must be a minimum of 3" (75 mm) in lengths. If contaminated, clean the sanded surfaces with solvent. 3. Mix the adhesive with filler. Assemble and bond the containment sleeve coupling into place and heat cure the bond. 4. After the repaired section has cured, pressure test the system following the procedures on page 17. If damage is beyond these repair procedures, immediately contact your local distributor for assistance. CZ