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// CODE SNIPPET

Section 3141B Wastewater Disposal

Los Angeles Building Code > 31B [DPH] Public Pools > 3141B Wastewater Disposal
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3141B.1 General Requirements

Material cleaned from filters and backwash water from any recirculation system shall be disposed in a manner that is acceptable to the local waste-water agency and will not create a nuisance. Backwash water shall not be returned to a pool. Pipes carrying wastewater from pools including pool drainage and backwash from filters shall be installed as an indirect waste in accordance with the requirements of Chapter 8 of the California Plumbing Code. Where a pump is used to discharge waste pool water to the drainage system, the pump discharge shall be installed as an indirect waste.

3141B.2 Diatomaceous Earth Filters

The backwash from a diatomaceous earth filter shall discharge into a separation tank that has been installed to collect the waste diatomaceous earth mixture. The wastewater from the separation tank shall discharge into a sanitary sewer or other disposal system acceptable to the local wastewater agency.

3141B.3 Piping

Sumps and drain piping shall have sufficient capacity to receive recirculation system backwash without overflow of the sump receiver. The sump shall not permit sewage to enter the surge basin or the pool in the event of a sewage backup

3141B.4 Visual Indicator

Where direct observation of the backwash discharge is not visible to the operator during backwash operations, a sight glass shall be installed on the wastewater discharge line.

3141B.5 Prohibited Connection

There shall be no direct connection between the pool, its recirculation system or overflow drain to any sanitary sewer, storm drain or drainage system.

Related Code Sections


Section 3141B [DPH] Public Pools, Wastewater Disposal
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Los Angeles Building Code > 31B [DPH] Public Pools > 3141B Wastewater Disposal
1014.3.6 Traps and Interceptors, Sizing Criteria
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714.0 Sanitary Drainage, Damage to Public Sewer or Private Sewage Disposal System
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Los Angeles Plumbing Code > 7 Sanitary Drainage > 714.0 Damage to Public Sewer or Private Sewage Disposal System
714.5 Sanitary Drainage, Tanks
An approved type, watertight sewage or wastewater holding tank, the contents of which, due to their character, shall be periodically removed ...
Los Angeles Plumbing Code > 7 Sanitary Drainage > 714.0 Damage to Public Sewer or Private Sewage Disposal System > 714.5 Tanks
1014.3 Traps and Interceptors, Gravity Grease Interceptors
-minute retention time (ref.: George Tchobanoglous and Metcalf & Eddy. Wastewater Engineering Treatment, Disposal, and Reuse, 3rd Ed. 1991 ...
Los Angeles Plumbing Code > 10 Traps and Interceptors > 1014.0 Grease Interceptors > 1014.3 Gravity Grease Interceptors
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