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Figure 2 drain valve passes testing no further maintenances required . If the drain valve fails testing , remove the Step 8 : (See Figure 3 & 4) valve , soak in water and use high -pressure air, if Install adjusting system beneath tabs on mounting needed , to clean . Reinstall the drain valve to its ring . See Figure 3 for standard cover models . See proper position and test the valve with CARB Figure 4 for sealable cover models . Add shims as procedure TP-201 . 1 C or TP-201 . 1 D . If problems needed and adjust with screw . (Shims must be cut persist, replace the drain valve with P/N 1 DK-2100- to size for sealable cover models . ) The height can EVR (specified torque 11 . 5 ft-Ibs min to 13 . 5 ft-lbs be increased up to 1 " (2 . 5cm ) . max , 5/16- 18 UN thread) . The sealable cover ( 1 SC) Note: The adjustment should not be more than 1 It adjustment nut is set at the factory , but due to from the initial length of the unit. environmental conditions it may be necessary to adjust it to either improve sealing or ease cover Step 9 : removal . Upon preliminary installation perform the California Test Procedures TP-201 AC or equivalent . Their Important : Leave these instructions with Station Test Procedures will check the seals between the Operator. drain valve , nipple and rotatable adapter. To test the spill containers base and bellows fill the container with water. A drop in the water level of 1 /16" or greater after one hour means that a leak exists . To determine where the leak is , look for a - steady stream of bubbles coming from one of the - joints or water leaking on the outside of the bucket . NOTE : Do not drain the water into the UST after the ht ig �� Shims test is complete . Water must be disposed of per He local requirements for hazardous waste . If the leak Adjustment Bolt r J cannot be corrected the spill container should be ---- - - - - - replaced with another. - - - Cap Adapter Step 10 : (See Figure 2) Figure 3 - Standard Cover Model Height Adjustment Before pouring concrete , place plastic over the cover and mounting ring protecting them from concrete splash . Double check that the unit is level and at proper grade height . Pour concrete per figure 2 . Ramp or dome the concrete away from the mounting ring . There should be a minimum of 1 " slope to finish grade . The concrete surface should start at the bottom edge of the watershed slots and tapered down to grade level . NOTE; Do not stand on spill container before i7 concrete sets up. Remove plastic from cover after concrete has dried . Shims Must Tm Height Remove adjustment system . Adaptor and tight fill Bet To Adjustment cap can now be installed in sealable cover models . Length Boit Re-test the spill containers for leaks as described in step 9 , after the concrete has set up . Use oPW 116-7085 or 4" Pipe Cap Operation and Maintenance . to Support Nipple Annually : Inspect and clean the interior of the spill Adjustment container and drain valve screen . Remove System accumulated dirt and grit. Test the drain valve using Figure 4 - Sealable Cover Model height adjustment CARB procedure TP -201 . 1 C or TP -201 . 1 D . If the 4