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Its water heater division introduced the first glass-lined commercial water heater, the A. O. Smith Burkay B-65, and later the company established a glass fiber division to replace steel in many applications. It also expanded into supplying oil field pipe and pipe for service stations, eventually becoming Smith Fiberglass Products in 1986.
Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes
Water supply and sanitation in France is universal and of good quality. Salient features of the sector compared to other developed countries are the high degree of private sector participation using concession and lease contracts (gestion déléguée) and the existence of basin agencies that levy fees on utilities in order to finance environmental investments.
Such water may emerge as springs, artesian springs, or may be extracted from boreholes or wells. Deep ground water is generally of very high bacteriological quality (i.e., pathogenic bacteria or the pathogenic protozoa are typically absent), but the water may be rich in dissolved solids, especially carbonates and sulfates of calcium and magnesium.
When a solar water heating and hot-water central heating system are used together, solar heat will either be concentrated in a pre-heating tank that feeds into the tank heated by the central heating, or the solar heat exchanger will replace the lower heating element and the upper element will remain to provide for supplemental heat. However ...
The following other wikis use this file: Usage on ar.wikipedia.org ايه او سميث; Usage on de.wikipedia.org A. O. Smith Corporation; Usage on et.wikipedia.org
European Union law is a system of rules operating within the 27 member states of the European Union (EU). It has grown over time since the 1952 founding of the European Coal and Steel Community, to promote peace, social justice, a social market economy with full employment, and environmental protection.
The water was used for a variety of purposes, including removing overburden and rock debris, called hydraulic mining, as well as washing comminuted, or crushed, ores and driving simple machinery. The Romans used hydraulic mining methods on a large scale to prospect for the veins of ore, especially using a now-obsolete form of mining known as ...