305.6 The minimum frost depth for West Whiteland
Township is 36 inches, and water services shall be a minimum of 42
inches below finished grade.
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The minimum backflow protection shall be double-check-valve
assembly, equal to Watts No. 7 or equal. Backflow preventers shall
be installed above ground on all residential and nonresidential water
supply lines.
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703.6 Minimum exterior building sewer shall be
four inches.
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703.7 Exterior Building Sewer: The exterior building
sewer shall be installed with piping materials as permitted by the
West Whiteland Township Plumbing Code bedded in No. 1B or No. 2B stone
of not less than six inches in depth and shall have not less than
six inches of the cover of the same. Pipe shall be extended to within
five feet of the building. All risers and stacks shall have solvent
weld glue Ts, or other approved materials, approved prior to installation.
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703.8 Stream Crossings: All stream crossings require
approval of the Pennsylvania Department of Environmental Protection.
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703.9 Connections to West Whiteland Township's
sewer system shall be made into a lateral or wye left for that purpose.
Where no lateral or wye has been provided, a minimum six-foot section
of main shall be removed and SRD-35 pipe and wye with fernco's
shall be installed. The trench and pipe shall be backfilled with 2B
or 2A stone.
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Individual grinder/sewer ejector pumps for single-family and
one- and two-family dwellings homes.
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712.5 Installation: Installation shall consist
of dual alternating or single grinder/sewer ejector pumps. If a single
pump is used, the following shall be provided: pump failure warning
light and horn. The pump shall be sized for the flow and pressure
requirements.
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712.5.1 Pumps: Pumps shall be installed in a watertight
tank. All tanks shall be underground with a gastight lid and properly
vented as per manufacturer's specifications. The exterior of
the tank shall be coated with bituminous material. The use of existing
septic or holding tanks shall not be permitted.
[Amended 4-11-2018 by Ord. No. 441] | |
712.5.2 Controls: Systems shall be provided with
their own circuit and control panel with manual and automatic pump
capacity. All devices and pumps shall meet all requirements of the
National Electrical Code. An owner's manual shall be provided.
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712.5.3 Piping: All piping shall be of approved
material and approved prior to installation. All piping is required
to be bedded in 2A or 2B stone.
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712.5.4 Alternative Method: Alternative methods
or materials are permitted with the approval of the plumbing official
prior to the installation.
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1113.2 Sump pumps are not permitted to be discharged
into West Whiteland Township's sanitary sewage system at any time.
If observed, the owner shall be notified that he/she/it has 24 hours
to correct the violation or be subject to penalties listed under this
article. Floor drains may only discharge to the West Whiteland Township
sanitary sewer system upon approval by the Code Official.
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