The Butte inter mountain. [volume] (Butte, Mont.) 1901-1912, 1901-08-28

Section "a. Ventilation pipes. when not
lead or castiron, shall be galvanized
wrought-iron.
Vent pipes must be rum as straight and
direct as practicable and with grade, to
avoid trapping of condensation. Forty
five degree ellis shall be used at all
times where practicable. Vents shall be
run up separately through the roof in all
buildings more than two stories high,
and shall be increased in size to at least
four inches from a point eighteen inches
below the roof.
In one and two-story buildings, the
vent pipe may be connected with the
main soil pipe at point not less than
three feet above the highest fixture; said
soil pipes to be increased one size from
point Where vent enters and to continue
that size up to above highest point of
roof.
Where vent and soil pipes pierce the
roof, the opening shall be properly
flashed with sheet lead, by either caulk-
ing into hub Of soil pipe at surface of
roof, or in casting pipe at least twelve
inches above roof with sheet lead casing,
made tight at top; flashing to extend at
least nine inches on all sides Of pipe.
Connections Of lead pipes with wrought
iron pipes shall be made with cOmbina-
ton brass ground couplings, or brass
soldering nipples, with property wiped
joints.
Local vent pipes may be run in, up or
out OF heated f1ue; in such case. the in
crease may be omitted.
Every sink, bath tub wash tray, basin,
water closet, urinal, and every fixture
having a waste pipe shall be separately
and Independently trapped with water
sealing trap, placed as near the fixture
as practicable; traps shall be protected
from espionage and air pressure by spe-
cial air or vent pipe of size not less than
waste pipe up to and including two
inch.
Over two-inch and not exceeding four
inch, two-inch vent shall be used. Each
| vent shall have trap screw soldered
! into it, not more than six inches above
where it connects with the trap. Each
! vent shall extend two feet above the fix
! ture it serves before connecting with
other vent pipes.
Traps must be placed above floors OF
in accessible locations.
Wastes from bath tubs and wash trays
| to be connected to drum trap with trap
screw not less than three inches In diam
eter and placed as close to the fixture
as practicable, in an accessible location.
Drum traps must be not less than four
inches in diameter and not less than
eight inches high.
Where two fixtures connect into one
vent such connection shall be made with
not less than one and one-half inch
pipe, and from three fixtures. not less
than two-inch; and for water closets, not
less than two-inch pipe for forty feet OF
less, and two and one-half-inch pipe shall
be used for an additional twenty feet;
provided, that vent pipes for three OF
more fixtures, with waste three or foul
inches in diameter. shall be not less thar
three inches for twenty feet or less: ovel
twenty feet, four inches shall be used
Sec 3. This ordinance shall take eHec
and be in force from and after January
1st, A. d. 1902
Passed this 21st day of August, A. u
1901.
Approved this 22d day of August, A.
1901.
Mayor.
Attest: w. X. QUARLEs.
City Clerk
Office of the City Clerk. of the City
Butte, County Of Silver Bow. State
Montana, IS.