Dispersal Zone: correct answers Dispersal Zone: dimensional volume of insitu soil that receives wastewater for treatment or distributes final effluent for disposal
Horizontal reference point correct answers Horizontal reference point: Stationary identifiable point to which horizontal dimensions ...
WI PLUMBING STUDY || A VERIFIED A+ PASS.
Dispersal Zone: correct answers Dispersal Zone: dimensional volume of insitu soil that receives
wastewater for treatment or distributes final effluent for disposal
Horizontal reference point correct answers Horizontal reference point: Stationary identifiable
point to which horizontal dimensions can be related
POWTS dispersal component: correct answers POWTS dispersal component: device or method
that is intended to promote the assimilation of treated wastewater by the environment
TSS's: Total suspended solids correct answers TSS's: Total suspended solids: solids in
wastewater that can be removed readily by standard filtering procedures in a laboratory and
reported as milligrams per liter. (mg/l)
SPS PURPOSE: correct answers SPS PURPOSE: all plumbing in connection with buildings and
facilities in the state including buildings owned by the state or any political subdivision thereof,
shall be safe, sanitary and such as to safeguard the public health and waters of the state.
SPS Intent correct answers SPS Intent: plumbing in connection with all buildings public and
private, intended for human occupancy shall be installed and maintained in such a manner so as
to protect the health, safety and welfare of the public or occupants and the waters of the state.
Department Plan approval correct answers Department Plan approval: Plan approval by the
department or its authorized representative shall expire 2 years after the date indicated on the
approval letter, if construction has not commenced within that 2 year period.
Local inspection: correct answers Local inspection: Where the plumbing is installed in a
municipality having a local inspector, the testing of the plumbing shall be done in the presence of
a plumbing inspector except as provided in subd. 1.b.
Test methods for drain and vent systems: correct answers Test methods for drain and vent
systems: 10 feet head of water. Air test shall be made by attaching an air compressor testing
apparatus to any suitable opening then force air into the system until there is a uniform gauge
pressure of 5 PSI or sufficient to balance a column of mercury 10" in height. Pressure held for at
least 15 minutes.
Sanitary drains continuous flow devices: correct answers Sanitary drains continuous flow
devices: drainage fixture unit values for continuous flow devices such as p umps ejectors AC
equipment or similar devices that discharge continuously shall be computed on the basis of 2
fixture units for each one GPM of flow.
Pressurized sewer: correct answers Pressurized sewer: Sewers pressurized through the use of
sewage ejectors, sewage pumps or sewage grinder pumps shall be sized to maintain a minimum
flow velocity of 2 FPS and shall be in accordance with the ejector or pump manufacturers
, recommendations. minimum 1-1/4" discharge on grinder pump, minimum 2" discharge on non
grinder pump
Backwater protections: correct answers Backwater protections: a building drain subject to
backflow or backwater shal be protected with a backwater valve or with a sump with pumping
equipment in accordance with sub. 10. They shall be accessible for maintenance. Backwater
valves shall be located as to be readily accessible for cleaining.
Frost protection building sewers correct answers Frost protection building sewers within 30' of
building and snow will not be removed shall not be required to be protected from frost.
Frost protection building sewers insulation correct answers Frost protection building sewers -
extruded polystyrene foam insulation shall be installed at a depth of at least 18" below finished
grade and a t least 6" above the top of the sewer pipe. Thickness and width of foam shall be
determined by figure 382.30 page 32.
Water wells separation from building drains, sewers etc correct answers Water wells separation
from building drains, sewers etc applicable separation distances contained in chs. Nr 811 and
812. 382.40 as well- Buildings 10', Holding tank 10', POWTS dispersal 5', POWTS HOLDING
TANK 10', PROPERTY LINE 5', SWIMMING POOl IN GROUND 15' WELLS 25', SCHOOL
WELLS 250'
Wet Venting: correct answers Wet Venting: Vertical wet vents- where 2 wall outlet fixtures are
located on the same floor level with' their fixture drains connecting to the same vertical drain
pipe at different elevations the lower fixture drain may be wet vented in accordance with sub.1.
No other fixtures may discharge into the vertical drain pipe above or below the 2 wall outlet
fixtures
Fixture wet venting correct answers Wet venting: the drain between the 2 fixtures shall be at
least one pipe size larger than the upper fixture drain but not smaller than 2" in diameter.
Trap distances correct answers Traps: the vertical distance between the top of the fixture drain
outlet and the horizontal center line of the trap outlet shall not exceed 15"
Direct fixture connection- kitchen correct answers Kitchen sinks: Horizontal drain piping serving
a kitchen sink trap shall not connect to a vertical drain piping by means of a double sanitary tee.
Residential clothes washer standpipes: correct answers Residential clothes washer standpipes:
between 18-36" above the centerline of the trap outlet. The receptor shall terminate at least 26"
but not more than 48" above the floor.
Grease and Oil Treatment correct answers Grease and Oil Treatment: where one or more interior
grease interceptors are provided the wastes from a food waste grinder a sanitizing compartment
of a sink or a rinse compartment of a sink may bypass the interceptor or interceptors.
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