| A type of portland cement that will harden or set under water.
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| A lifting device powered by pressured fluid.
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| A digging machine powered by pressured fluid.
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| The slope of the surface of open or underground water.
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| 9 Sylvan Way, Parsnippany, New Jersey 07054, (201) 267-7772.
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| An elevating device powered by pressured fluid.
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| (See Airless) Spraying by hydraulic pressure.
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| Of a mechanism operated, moved, or effected by use of water pressure.
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| 1. The science of the conveyance of liquids through pipes. 2. The branch of physics having to do with the mechanical properties of water and other liquids in motion.
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| Obtained by catalytic polymerization of petroleum fractions.
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| An organic compound containing only carbon and hydrogen; fuels such as natural gas, gasoline, and coal contain hydrocarbons.
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| A solution of the colorless gas hydrogen chloride that is a strong corrosive irritating acid, used in dilute form for cleaning portland cement paste from brick or stone work.
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| An aqueous solution of hydrogen fluoride that is a weak poisonous acid that attacks silica and silicates, used for finishing and etching glass.
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| A system whereby one or more hydrojets are activated by the use of a pump which is completely independent of the filtration and heating system of the spa.
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| A fitting which blends air and water creating a high velocity, turbulent stream of air enriched water.
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| The science of the properties of the earths water, on the surface, subsurface, and atmospheric, and its movement in relation to land.
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| A device for measuring the density of liquids.
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| A system that circulates heated water through convectors to heat a building or space.
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| Heating system which circulates a heated fluid, usually water, through baseboard coils by means of a circulating pump which is controlled by a thermostat.
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| systems of heating or cooling that involve transfer of heat by a circulating fluid, as water or vapor, in a closed system of pipes.
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| Having an affinity for water; capable of uniting with or dissolving in water.
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| Having antagonism for water; not capable of uniting or mixing with water.
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| The process of growing plants in sand, gravel, or liquid, without soil and with added nutrients.
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| Pressure exerted by standing water.
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| A valve installed in the main drain of the swimming pool, sometimes in other areas as well; when the pool is full, the valve is closed; when pool is empty, it is opened to allow ground water to flow into the pool; this prevents the pool from floating, which happens if ground water pressure builds up.
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| Containing water.
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| An instrument, consisting of a dry bulb thermometer and a wet bulb thermometer, for measuring the humidity of the atmosphere or of a gas; also called a Wet and Dry Bulb Hygrometer or a Psychrometer.
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| 1. Tendency to absorb water. 2. Ability of a substance to absorb and release moisture and change physical dimensions as its moisture content changes. 3. A synthetic rubber (chlorosulfonated polyethylene) often used with neoprene in elastomeric roof coverings; Hypalon is a registered trademarked name of E.I. du Pont Co.
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| A concrete roof structure with a saddle shape.
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| Double curved surface which can be generated by sliding a straight line along two other lines which are skew to each other but lie in parallel planes.
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