The Cairo bulletin., 1907-09-18

be resorted TO. To enable the work.
men to do the work to the best adj
vantage. both as to the matter or se-
ereing q proper foundation and forl
LAYING the pine the bottoms OF the
trenches shall be made at least one
Ig3 foot wider than the external
diameter Of the sewer pipe and wider
n found necessary or best; and they
shall lie curved or shaped TO the form
land size OF the lower half OF the
sewer, ppe to be laid thereon, so that
TIE hubs or bells as well as the body
or the pipe may be carefully embed
aea ana have an even bearing on the
bottom OF the trenches.
Whenever the ground, at the bot
tom OF the sewer trench, shall not be
4 fcund to be sufficiently firm or solid
/ for the laying OF the sewer pipe. the
same shall be put in proper and suit
able condition by the contractor by
the use Of such materials as Will
make a safe and permanent founda-
4 ton for the work.
Section 8. The sewer pipe, house
connection pipe and inlet pipe shall
\ he Of fine best grade and quality Of
! vitrified tile sewer pipe, salt
4 glazed and free from cracks,
Il flaws bisters, Jumps or other der
4 fects or blenfshes, and shall be
4 OF the hub and spigot pattern. Both
1.-THE body and the bell shall be of
4 hax n nj N pc
OF not less than one-twelfth G-12l OF
the internal diameter OF the pipe and
the joint connections of the pipe shall
Il be fitted tight and close and laid In
the best quality of Portland cement
mortar, composed Of one CD part OF
cement and one t1) part of clean
sand with only enough water to give
II consistency to the mortar which shall
be used as soon as made; and before
lowering the joints or pieces OF pipe
/, into the trenches, they shall be care
Fl fully examined and inspected and
i those not meeting the foregoing re-
, quirements shall be rejected and re-
4 moved from the work. The pipes
hall be so laid in the trenches that
after the sewer is completed, the In
terror surface thereof shall conform
accurately to the grade herein given
for the laying Of the sewer, and all
adjustments to line and grade of pipe
laid directly upon the bottom OF the
, trench must be done by scrapine
away or filling in with earth and com
ipacting the same under the body OF
the pipe and not by blocking OIL
wedging up. Before laying, the inter
Tor Of the bell shall be carefully
wiped smooth and clean and the an
, nuiar space shall be free from dirt OF
, mortar A narrow gasket of packing
shall be property caiked into each
Joint. after which Portland cement
. mortar. composed of one "a part Of
cement and one 1D part of clean
! sand. shall be introduced therein, ant
. snch gasket shall be of one piece D.
snffieient length to reach entirel,
, around the pipe and of sufficien
/ thickness to bring the bottoms Of the
, two pipes to the same level. No Join
, shall be cemented until the gaske
Tot the next two joints in advance
are properly inserted, Special care
: must be taken to fill with mortar ths
annular space at The bottoms ant
sides as we'll as at the tops OF the
, Joints After such space has beer
filed, the cement having been com
, pacted with a wooden or iron callSine
tools neat finish shall be given Il
, 1.-THE joint by the further application OF
, similar mortar to the face of the hubs
T 50 as to form a continuous and ever
, beveled surface from the exterior Of
the hub to the exterior of the spigoi
! all around. As soon as the cement o.
> any Joint has been compacted, The
bell hole under the hub must be care
? fully and compactiy filled with sanC
, Tor fine earth so as to hold the eX
, terror mortar finish of said joints Sc
curely in it's place. The reflling shall
then be carried half way up the sides
Of the entire length of pipe witt
I'sciected earth and compacted with ;
proper tamping tool. While the pipe
Is being, laid in each section between
, manholes or other permanent open
, ings. light from the remote end of the
section shall remain constantly in
, plain view.
Section 4. On both sides of The
, sewer and as near the center line o
each lot or parcel OF land of tht
, width of twenty-five (25) feet, there
. shall be Y branches, of six 90 inches
diameter. laid or turned TO an angle
Of forty-fiye (45) degrees to receive
, six 90 inch house connections here
, matter provided for: and said house
connections shall be securely close,
. ~ the Tot line with an earthenwar'
car set in cement mortar. excep
, uaers the lot owner or proprietor de
sires to connect his house or drair
= pes Herewith at once. The exac
, location Ct all branches shall be-
! Carafully ascertained by the city en-
. pIneer of the city or some other com
, petent person. designated or ap
pointed by the city council. before tbs
concealment of the said branches b.
back filing. by accurate measurement
from the center of the manhole mex
, below in the same line of pipe. 81
that true ard exact record may be
preserved for future use: and no