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TERM
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EXPLANATION
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"L" Tubing |
An industry standard for copper tubing defined
by the tube wall thickness and identified by a "blue" strip. Type "L"
copper tube wall is approximately 50% greater thickness than Type "M"
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LDO |
Lint, Dust, and Oil
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LP |
Liquid Propane. A fuel for gas
water heaters. |
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Laminar Flow |
Streamlined flow of a fluid near a solid boundary. |
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Laminated Glass |
Glass that has been made by uniting layers
of glass in order to strengthen the glass. |
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Langelier's Index |
A calculated number used to predict whether
or not a water will precipitate, be in equilibrium with, or dissolve calcium
carbonate. It is sometimes erroneously assumed that any water that tends
to dissolve calcium carbonate is automatically corrosive. |
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Lateral Sewage Line |
A sewage line that connects one sewage pipe
with another. |
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Laundry Tray |
Laundry Tub |
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Laundry Tub |
Very deep sink used in a laundry room for
soaking or washing clothing. |
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Lav |
Lavatory |
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Lav Tube |
Water supply tube for lavatory. |
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Lavatory |
A fixed bowl or basin with running water and
drainage for washing. Bathroom sink. |
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Leach Field |
Porous soil area, through which septic tank
leach lines run, emptying the treated waste. |
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Leach Lines |
Pipes that carry effluent from the septic
system out to the leach field. |
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Leakage |
Loss of fluid usually due to mechanical breakdown
or gasket wear. |
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Lean Mixture |
An air-gas mixture that contains more air
than needed for complete combustion of the gas. |
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Leader Pipe |
A pipe that carries rainwater to the ground
or sewer. |
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Lien |
A legal right to hold another's property,
or to have it sold, or applied for payment of a claim, especially to satisfy
a debt. |
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Lien Release |
A written document from the contractor to
the owner that releases the Lien (mechanic's or material) following its
satisfaction. |
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Lien Waiver |
A written document from a contractor or material
supplier having lien rights against an owner's property that relinquishes
all or part of those rights. |
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Lifting Flame |
See
Floating Flame |
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Length |
A unit of linear measure for pipes, such as
10 or 20 ft. |
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Life Cycle Labs |
A place where water heaters are tested at
an accelerated rate to simulate life expectancies. |
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Light Duty |
Small commercial applications. |
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Lime |
See
sediment. |
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Limit Stop |
Faucet control unit used to adjust maximum
water temperature. |
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Lock Nut |
Nut fitted into a piece of pipe and screwed
onto another pipe to join the two pieces. |
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Low Consumption Toilet |
A class of toilet designed to flush using
1.6 gallons of water or less. Also known as "Water-saving" toilets. |
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