All receptacles used as water closets, urinals
or otherwise for the disposal of human excreta shall be of vitrified
earthenware or other non-absorptive watertight material. Closet bowls
and traps shall be made in one piece and of such form as to hold a
sufficient quantity of water, when filled to the trap overflow, to
prevent the fouling of surfaces and shall be provided with approved
integral flushing rims. Every water closet with the connection through
the floor shall be set on a floor slab of porcelain, porcelain tile,
slate or marble, the same to be not less than the base of the water
closet thereon. If there is only one water closet in a dwelling, it
shall not be located in a cellar or hall; nor shall any water closet
be located outside of a building except to replace an existing water
closet.
All plumbing fixtures shall be installed free
and open in a manner to afford access for cleaning.
Frostproof closets may be installed only when
and as specially permitted by the Inspector.
A group of urinals on one floor subject to constant
use, as in schools and factories, may be supplied from one tank if
provided with an automatic simultaneous flush, provided that each
individual urinal shall receive not less than two gallons of water
at each flushing and the discharge is of such force as to cleanse
each individual bowl at each flush. Both intermittent and automatic
flushing devices shall be flushed at regular intervals, not to exceed
10 minutes each, during the hours that such fixtures are in use. All
water closets shall be served by tanks of ample size to adequately
flush the same.
Only full-sanitary type fixtures and equippings
may be installed. Secondhand fixtures are prohibited unless approved
by the Inspector. All basin bibs must be overrim type.
A shower drain shall be considered a fixture
and provided with a strainer trap, vent connection and water supply
adjacent for maintaining the trap seal.
The overflow pipe from a fixture shall be connected
on the inlet side of the trap and arranged to be easily cleaned. All
water supplied shall terminate three inches above an overflow inlet.
All fixtures other than water closets and pedestal
urinals shall be provided with fixed strong metallic strainers with
outlet areas not less than that of the interior of the trap and waste
pipe.
