Specifications
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Water
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The two main sources of water are surface water and
ground water. Surface water comes from lakes, streams
and reservoirs. Ground water comes from wells. Water
sources usually contain some impuries. Most are
harmless to people, but some can damage a water heater
over me.
Suspended Solids
Surface water is more likely to contain suspended solids,
such as sand, dirt, silt, clay, algae and decaying vegetaon.
These suspended solids can make water appear murky, or
they can be microscopic and not easily visible. Suspended
solids will cause staining of sinks, xtures and clothing. A
mechanical ltering system can be installed to remove
suspended solids.
Dissolved Gasses
Ground water is more likely to contain dissolved gasses
such as hydrogen sulde. When water containing
hydrogen sulde is heated, it produces condions
favorable to the growth of sulfate reducing bacteria. This
bacteria is harmless but will cause a disnct “roen egg”
smell which is parcularly noceable with the rst hot
water usage of the day such as a morning shower. This
problem can usually be eliminated by replacing the anode
rod with one made of a slower acng material and
ushing the water heater with chlorine bleach to kill the
bacteria.
Other dissolved gasses, such as oxygen and chlorine may
cause water discoloraon. This condion is usually
referred to as milky water because the hot water has a
whish color when inially drawn from the tap. When
le standing for a few minutes, the water will become
clear as the gas bubbles dissipate. This condion is
harmless but can be improved by installing aerated
faucets.
When the hot water system has not been used for an
extended period of me, such as while away on vacaon,
hydrogen gas may be produced. Hydrogen gas is
extremely ammable and will ignite when exposed to a
spark or ame. To prevent the possibility of injury, the hot
water faucet at the kitchen sink should be opened for
several minutes before using any electrical appliance in
the immediate vicinity. If hydrogen gas is present, there
will be an unusual sound such as air escaping through
the faucet as water begins to ow.