I i ; i -, .

 group of nixAig tanks, as desired. The second, or settled water duit,
 i conve's the settled water to the filters. The third, or transfer cond is so
 i arranged that wader may be taken from any one settling basin I dis-
 chargqd ingo ny other basin. In this wa, basins may be used in allel














 Fio. 18. FIurER &ND CHEMICAL HOUsE.
 or in series.' he lowest conduit leads to the sewer and is used to dispose
 ,of the accunmulted sludge.
 In the top of the.upper conduit, 12-in. and 15-in. half round tile pipes.
 encased in concrete have'been placed (Fig. 17). These conduits aGvey
















 FiG. 19. CamcaL HoUsE.
 tie chetiical so ,tions to any desired mixing tank. Access to the tr~ hs
 i proved at f euent intervals by choker plate covers. 4
 Ch nici use. The chemical house is a two-story re.nforcedi)on-
 : II '' '