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3.2 Existing Users <br /> A. Any existing FSE without a functional GRS shall be required to install one. The <br /> type of GRS required will be determined by the Director, taking into account cost, <br /> available space and gradient, whether the user is in a grease impact area, and any <br /> other pertinent information. Where feasible, all kitchen drains and any other <br /> drains that may carry grease-laden waste shall be connected to this GRS (except <br /> the dishwasher if a trap-style GRS is installed.) If a trap-style GRS is installed, <br /> the kitchen may not have a garbage disposal/garbage grinder/macerator or similar <br /> unit installed. <br /> B. Any existing NFD without a functional GRS may be required to install one. The <br /> type of GRS required will be determined by the Director, taking into account cost, <br /> available space and gradient, whether the user is in a grease impact area, and any <br /> other pertinent information. Where feasible, all kitchen drains and any other <br /> drains that may carry grease-laden waste shall be connected to this GRS (except <br /> the dishwasher if a trap-style GRS is installed.) If a trap-style GRS is installed, <br /> the kitchen may not have a garbage disposal/garbage grinder/macerator or similar <br /> unit installed. <br /> 3.3 Grease Removal System Maintenance <br /> A. All grease removal systems shall be maintained to ensure proper operation. At a <br /> minimum, interceptor-style GRSs shall be cleaned at least once every 90 days and <br /> trap-style GRSs cleaned at least once per week. These required frequencies may <br /> be extended with the approval of the Director. Grease Removal Systems must be <br /> cleaned whenever the combined thickness of the floating greases and settled solids <br /> is equal to, or greater than, 25%of the total liquid depth in the GRS. <br /> B. When cleaned, an interceptor-style GRS must be completely pumped out, all <br /> solids removed, solidified grease scraped from the interior and the structure and <br /> all internal plumbing inspected for damage and corrosion. The GRS shall be <br /> refilled with water prior to being placed back into operation. If repairs are <br /> required, they shall be performed within 7 days. <br /> C. Trap-style GRSs may be maintained by the FSE or NFD. When cleaned, the trap <br /> must have surface grease and oil removed, settled solids removed, all sides <br /> scraped, removable parts removed and cleaned, be inspected for damage and <br /> corrosion, and be properly reassembled. If repairs are required, they shall be <br /> performed within 7 days. <br /> 18 <br />