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.� <br />� <br />� <br />� <br />� <br />� <br />� <br />� <br />� <br />� <br />�� <br />LJ <br />� <br />�� <br />� <br />303.600 Settina Hydrants <br />300-12 <br />$ydrant� shall be looated a� directed by the Engineer or his <br />represeatative and ahall be placed as shoti+n on the Standard Details of <br />the plan$. After each hydrant has been set, there sha11 be placed <br />around the base of the hydrant, at least one-out►ia yard oP e�s�rse <br />gravel or crushed rook. A layer of four.mil-thio).c polyethelene aha11 <br />be carePully plaaed ovar the rock to prevent baok�Pill material entering <br />the v�tds in th� roek drain. All hydrants muat b�e maintained in a <br />plum`b position. Hydrant extensions shall be used with the Eraglneer'� <br />�ons�ant only. ' <br />303.700 Joint R�straint <br />R�tainer glands shall be used for jo,int re�traint ou all bends having a <br />dsflectian of 22 1/2 degrQea or greater, tee�, arosse9, pluga, valves <br />at the end � � a line, all hydr�nt val.ves� and all h�dranta. Restrai.ne�i <br />joints east onto the pipe by the raaziufaaturer (Lalc Tyton � Fast3te, <br />eta.), will be considered as being equ3va].ent to the u�e of re��iner <br />�ianda. IF retainer glands are n�ot ava��able, thrust blocki.a�r may be <br />used Witb appr�oval af the Water Uti.lity ir�speQtor. <br />The use of �ina aoa�ed tie rods suitabl�r attaohed by half-airele alamps <br />ciay be utilized With the Engineer°s permis�ion. <br />Where valves are loQated on dead finds, the valve►s may be tied or l�ggsd <br />a�cross the valves with tie rads. <br />Plugged tees and oro9aea Sn a atra±ght run do r�ot <br />For �gstraiasd �O�rit3� the number of f�et oP tied <br />be iti acaordana� aitb� the follo�ing table: <br />requlr� r�straint. <br />pipe requ�.red sha11 <br />