Louisiana Administrative Code › Title 51 - PUBLIC HEALTH-SANITARY CODE › Part XIV - Plumbing › Chapter 7 - Sanitary Drainage › Section XIV-731 - Sumps and Ejectors

Current through Register Vol. 50, No. 6, June 20, 2024
A.
				Building Drains below Sewer. Building drains which cannot be discharged to the
				sewer by gravity flow shall be discharged into a tightly covered and vented
				sump from which the liquid shall be lifted and discharged into the building
				gravity drainage system by automatic pumping equipment or by any equally
				efficient method approved by the plumbing official.
B. Check and Gate Valve Required. A check
				valve and a gate valve shall be installed in the pump or ejector discharge
				piping between the pump or ejector and the gravity drainage system. Such valve
				shall be accessibly located above the sump cover required by §731. A of this
				code, or when the discharge pipe from the ejector is below
				grade(G), the valves may be accessibly located outside
				the sump below grade(G) in an access pit with removable
				access cover.
C. Sewage Ejector
				Sump Construction. Sumps may be constructed of cast iron or monolithically
				poured reinforced concrete. When concrete sumps are used, a cover attachment
				ring shall be embedded in the concrete in such a way as to be watertight and
				gastight. The attachment ring shall be designed to fit the sump cover and allow
				a gastight and watertight seal to be made. Other engineered sump construction
				and materials may be accepted by the plumbing official when designed to be
				watertight and gastight and otherwise meet the requirements of this
				Section.
D. Venting. The system of
				drainage piping below the sewer level shall be installed and vented in a manner
				similar to that of the gravity system.
E. Duplex Equipment. Sumps receiving the
				discharge of more than six water closets shall be provided with duplex pumping
				equipment.
F. Vent Sizes. Building
				sump vents shall be sized in accordance with Table 937.B of this code but shall
				in no case be sized less than 1 1/2 inches.
G. Separate Vents. Vents from pneumatic
				ejectors or similar equipment shall be carried separately to the open air as a
				vent terminal (see §927. A of this code).
H. Connections. Direct connection of a steam
				exhaust, blowoff, or drip pipe shall not be made with the building drainage
				system. Waste water when discharged into the building drainage system shall be
				at a temperature not higher than 140°F (60°C). When higher temperatures exist,
				proper cooling methods shall be provided.
I. Pumping Station. Pumping stations shall
				comply with the following.
1. A pumping
				system shall include the sump pump, sump pit and discharge piping as specified
				below:
a. Sump Pump. An automatic water pump
				for the removal of drainage from a sump, pit or low point in a residential,
				commercial or industrial property. Capacity and head shall be appropriate to
				anticipated use requirements.
b.
				Sump Pit. The sump pit shall be not less than 18 inches (457 mm) diameter and
				24 inches (610 mm) deep, unless approved by the plumbing official. The pit
				shall be accessible and located such that all drainage flows into the pit due
				to gravity. The sump pit may be constructed of tile, concrete, steel, plastic
				or other approved materials. The pit bottom shall be solid and provide
				permanent support for the pump. The sump pit shall be fitted with a removable
				cover adequate to support anticipated loads in the area of use and to prevent
				refuse from entering the pit.
c.
				Discharge piping. Discharge piping shall meet the requirements of §731. B of
				this code.