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. ^ if ;J_ �'�f :.-i �.�_[-�c�'-L/ <br />i - <br />', lVhere the copper tubinG is to be buried in the ground tlte following �vall tiiicic- <br />, ness shou.id be used: <br />Typc L <br />1_��� 1_].0 ���� 3��� q��, 5��, 6u <br />0.055", 0.060", 0.070", 0.o9J", 0.110", 0.125", 0.140" <br />Ttte copper tubing to compl�• tvitl� tl�e requirenents of AST�! 0306-56T end in addition <br />copper drninage tubc (DIV\') sliould be :r.lcr banded evezy 10 fcet with a standard <br />vellow color For easy identification. <br />C�re must be taken that fittings and ends or tuUing are clean anA _`rr-.e fcom oil, <br />greasc ur ditt befoae aoldering. The sclder should in general be a 50-50 tin- <br />lead solder of gcod quality. <br />Where cepper pipe or tubing is Co be buried in the graund, cn investigatiau <br />,"�a�; should be made of the soil te determi.ne its chemical structure. Seils containing <br />relatively lnrge amounts of chlorides, sulphides, soluble salts ee high acid <br />content have a decided corrosive etfect en cepper. <br />V. R.1PP <br />Resenrch Gngincer <br />�R;ma <br />APPROVAL OF OTHER CITY DEPTS. <br />Flanning � - �- � ---- <br />�-/< 7`./`//). <br />Truffic Dept. _OI'; Nrov.�l�';)' n f f S/�-c'ot s`o.� <br />cngineering Dept. <br />�� W�{cr Dep}. <br />_Ekctria Dept �f��� <br />� Plumbing Dept. A <br />t' �i' . Y-� — <br />� <br />'� <br />-�:; �,:�u -�% <br />ti f. : i <br />% - -- — -- <br />'`"'�,-'ti, _�'=---- <br />s .— --- <br />Certifica4e of Occupancy— Musl g¢ �ss�ea Per Se 03 be Before Fremises Are Uccupied <br />OLLOWED EXA[TLI'. ULL fOR INSPECTION BEFpRE fO��RING AN\' <br />ING OROINANCES. CONrR[TE. 3E SURE OF SETOACKS AND yqI;DS <br />��l <br />