6.8 Flashcards
can provide clean, safe, and reliable water
through
properly
maintained catchment.
Rainwater
it is one of the purest sources of water
available, nearly always exceeding the
quality of ground or surface water.
Rainwater
*intercepts and collects storm water runoff
and detain or retain it for later use.
*used for _______ and other daily activities
that needs water.
Rainwater Collection/Harvesting, livestock
are made of a catchment area, conveyance
devices (e.g., gutters, conductors, and
downspouts), filters, storage tanks, and
distribution systems.
Rainwater Harvesting Systems
- wherein rainwater is collected usually
rooftop, patio, terrace or driveways. - they are made of a variety of materials
including _____, _______, __________,
and _____.
Roof Catchment Area, wood, ceramic, cementitious, metal.
are more likely than other materials to
support the growth of mold, algae,
bacteria, and moss, which can contaminate
water supplies.
Wood shakes, wood shingles, and
asphalt composition shingles
are relatively smooth and are therefore
less susceptible to contamination.
Metal roofs
is an exceptionally inert metal that works
well, but it is expensive.
Stainless steel
is also relatively inert, but the health
effects of ingesting small amounts of
aluminum are somewhat controversial in
connection to Alzheimer’s Disease.
Aluminum
are storage systems make use of _______ containers (e.g., barrel or fiberglass
tank).
Cisterns, above
ground
are the single largest investment for most
rainwater harvesting systems and are
mostly _______.
Cisterns, cylindrical
in cold climates, the cistern
must be protected from
freezing
by
________ or incorporating
it into a basement.
burying
it
underground
cistern can be made of galvanized
steel, concrete, fiberglass, or wood, plastic
(polyethylene). T or F
T
Is a horizontal ______ or channel
that runs along the ______ of a
building roof to capture and divert
rainwater.
Gutter, trough, eaves
which is a _______ that
carries the water collected by
gutter pipes ______ from the roof
gutter
Downspout, vertical pipe, away
is a horizontal pipe that carries water.
Conductor
custom made in one piece without seams
and are preferred to use for it only have
few joints.
Seamless Gutter
*Rainwater captured in a sanitized system is good
for drinking. T or F
T
__________ on the catchment area surface
can include pollen, dust, mold, bacteria, algae,
animal droppings, dead insects, smoky
condensate residues from heaters, atmospheric
pollutants, and chemicals from painted or
waterproofed surfaces.
Contaminants
prevents the initial flow of rainwater with
pollen, mold spores, and other contaminants
from draining into the _________, thereby
preventing large concentrations of surface
contamination from being collected in the
storage tank.
First-flush Washing, storage tank
First-flush Washing is needed for water used solely for irrigation
purposes. T or F
F (not needed)
Dirty storage containers may
become a _________ or a
_______ ground for
mosquitoes and other pests
health hazard, breeding
The design of the system should take into
account the intended use (potable or non
potable) of the system, water consumption
rates, local rainfall data and weather patterns, and the size and type catchment area and cistern. T or F
T
The design of a ________ system
must take into account how much water is
needed and when.
rainwater harvesting
