The Cairo bulletin. (Cairo, Ill.) 1???-1928, 1910-04-20

sorted To. TO enable the W0rkmen to
do the work to the best advantage,
both AS to the matter of securing d
proper foundation and for laying IN.
| pipe. the bottoms of the trenches
shall be made at least one (i) foot
wider than the external diameter of
the sewer pipe, and wider il found
curved or shaped to the form and size
OF the lower half OF the sewer pipe %
be laid thereon, SO that the hubs or
bells as well as the body OF the pipe
may be carefully embedded and have
an even bearing on the bottom of the
| trenches.
Whenever the ground, at the bot
tom of the sewer trench shall not he
found to be sufficiently firm OF 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 safe and permanent founda-
ton for the work
| Section 81 The sewer pipe, house
| connection pipe and inlet pipe sha /
be of the best grade and quality Of
vitrified tile sewer pipe, salt glazed,
and free from cracks, flaws, blisters,
Jumps or other defects or bemishe,,
| and shall be of the hub and spigot
pattern. Both the body and the hell
shall be of double strength and have
a thickness OF not less than one
twelfth t-t2l Of the interval diane
ter of the pipe, and the JOINT eunncc-
tons Of the pipe shall be fitted tight
ana close and laid in the best quality
lof Portland cement mortar, COM
posed Of one ca part OF cement and
one Gu part Of clean sand with only
enough water to give consistency 10
the mortar, which shall be used as
soon as made, and before lowering
| the joints or pieces Of pipe mto
the trenches, they shall be care
fully examined and inspected and
those not meeting the foregoing
requirements shall be rejected AMI re-
| moved from the work. The pipes
shall be so laid in the trenches that
after the sewer is completed, the inte-
rior surface thereof shalt conform &C
| urately to the grade hereil gwen for
| he laying Of the sewer, ana all al.
| iustments to the line and grada'of pipe,
| laf. ert 9 = IT,,
| trench, must be done BY scraping
away or filling in with earth and con-
| pacing the same under the body
of the pipe and not by blocking or
wedglng up. BEFORE laying, the inte-
rior Of the bell shall be careful "
wiped smooth and clean and
| the annular space shall be free
from dirt or mortar. A mar
row ga ket Of packing shall be proper
| iy calked into each joint aftes which
Portland cement mortar. IMPOSED of
one a part of cement and ore Gl
part OF clean sand. shall be introduced
therein ard such oaefet sail be Of
one piece Of sufficient length II reach
entirely around Tho pjue a"d Of suf(i.
'iont thickness to brine Nv" bet oms
| If tho tyo mines 10 the same lev'l.
No fr'nt ehaU IVA cr~-aatod until the
eastct tf ~ two fnin's Ia I'd.
vauca ~ r,y m2fttel Spcdar
core nrst ba taher 10 fill with oatar
tn annGa r race at Nh Bottoms ami
sides Is weH as at the tons Of the
Joints. After such space has been
filled, the cement having been COM
pacted with a wooden or iron calking
tool, neat finish shall be given to the
Joint by the further application of
similar mortar to the face Of the hubs,
so as to form continuous and even
the hub to the exterior OF the spigot
lall around. As soon as the cement of
any joint has been compacted, the
bell hole under the hub must be care
fully and compactly filled with sand
or fine earth so a to hold the ey e.
ri0r mortar finish of said joints se-
urely in ife piece, The rafilling shall
then be carried half way up the siles
If the entire length Of pipe with
selected earth AMI compacted with a
proper tamping tool While the pipe
IS being laid in each section between
manhoIes or other permanent open
ings, light from the remote end OF u,-
section shall remain constantly in
view
Section %. On both Sides Of TIE
aewer ard as no7o Tho center line Of
Zach lot CT parcel Of land of tie width
of twenty-five $3.50 feet as poss be,
there shall he Y branches cf six 90
inches diameter, laid or turned to an
angle of fortyfive (45) degrees to re-
"eive the TX CD inch houso connec-
tions hereinafter provided for: and
said house connections shall be Sc.
curcly closed ten 100 feet from
the lot line with an earth
enwarc cap set in cement NOR
tar eXcep whore the lot owner or
proprietor desires TO connect his
house or drain pipes Herewith at
once The exact location Of AZ Y
branches shall be carefully certain
ell by the city engineer of the city or