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-7- <br /> <br /> I <br />I <br />'1 <br /> I <br /> i <br /> I <br /> <br /> 3. Inlet and outlet connections of the tank shall be submerged by <br />means of baffles. <br /> <br /> 4. The ~hm~ in the tank between the liquid surface and the top of <br />the inlet and outlet baffles s~all be not less than twenty per cent (207o) of the <br />total required liquid capacity, except that in horizontal cylindrical tanks, <br />this space shall be not less than fifteen per cent (15%) of the total rectal red <br />liquid capacity. <br /> <br /> 5. Inlet and outlet baffles shall be constructed of acid resistant <br />concrete, acid resistant fiberglass, or plastic. <br /> <br /> 6. Sanitary tees shall be bonded to the inlet or oatlet pipes. <br />Baffles shall be integrally cast with the tank, affixed with a permanent <br />waterproof adhesive, or affixed with stainless steel connectors, top and <br />bottom. <br /> <br /> 7. The inlet baffle shall extend at least six (6) inches, but not more <br />than twenty per cent (20%) of the total liquid depth below the liquid surface <br />and at least one (1) inch above the crown of the inlet sewer. <br /> <br /> I <br /> I <br />:1 <br /> I <br /> I <br /> I <br /> I <br /> I <br /> <br /> 8. The outlet baffle and the baffles between compartments shall extend <br />below the liquid surface a distance equal to forty .per cent (407o) of the liquid <br />depth, except that the penetration of the indicated baffles or sanitary tees for <br />horizontal cylindrical tanks shall be thirty-five per cent (357o) of the total <br />liquid depth. They also shall extend above the liquid surface as required in 4 <br />above. In no case shall they extend less than six (6) inches above the liquid <br />surface. <br /> <br /> 9. There shall be at least one (1) inch between the underside of the <br />top of the tank and the highest point of the inlet and outlet devices. <br /> <br /> 10. The inlet invert shall be not less than three (3) inches above the <br />outlet invert. <br /> <br /> 11. The inlet and o~tlet shall be located opposite each other along <br />the axis of maximum d{,~nsion. The horizontal distance between the nearest <br />points of the inlet and outlet devices shall be at least four (4) feet. <br /> <br /> 12. Sanitary tees shall be at least four (4) inches in diameter. <br />Inlet baffles shall be no less than six (6) inches or no more than twelve (12) <br />inches m~asured from the end of the inlet pipe to the ne_~_rest point on the <br />baffle. O~tlet baffles shall be six (6) inches, measured ~rom the beginning of <br />the outlet pipe to the nearest point on the baffle. <br /> <br /> 13. There shall be one (1) or more manholes, at least twenty (20) <br />inches in dimension, and located within six (6) feet of any wall of the tank. <br />The manhole shall extend to a point within twelve (12) inches of, but no closer <br />than six (6) inches below, finished grade. The manhole cover shall be covered <br />with at least six (6) inches of earth. <br /> <br />I <br />I <br /> <br /> 14. There shall be an inspection pipe of at least four (4) inches <br />diameter or a manhold over both the inlet and outlet devices. The inspection <br />pipe shall extend through the cover and be flush with, or no more than six (6) <br /> <br /> <br />