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The company's filter cartridge for table water received the National Award for Innovation for Upper Austria in 2011. [3] The same year, the Rondomat Duo S series of water softeners won the Austrian national design prize [4] in the Capital Goods category awarded by the Federal Ministry of the Economy Family and Youth (German: Bundesministerium für Wirtschaft, Familie und Jugend).
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
A vacuum breaker is a device that prevents water from being siphoned backward in a direction it is not desired to go. They are commonly placed on a bibcock valve or toilet or urinal flush valve, in which application they can prevent hose or drainage water from back-siphoning into the public drinking water system. This prevents contamination ...
When measuring water treated with water softeners, high levels of total dissolved solids do not correlate to hard water, as water softeners do not reduce TDS; rather, they replace magnesium and calcium ions, which cause hard water, with an equal charge of sodium or potassium ions, e.g. Ca 2+ ⇌ 2 Na +, leaving overall TDS unchanged [9] or even ...
Where P is the power in airwatts, F is the rate per minute (denoted cu ft/min or CFM) and S is the suction capacity expressed as a pressure in units of inches of water. Some manufacturers choose to use the fraction 1 ⁄ 8.5 rather than the ASTM decimal, leading to a less than 0.25% variation in their calculations.
High water tables (in some cases less than 1 metre below the surface) and poor ground conditions have meant that the local water company, Anglian Water, has embraced the use of vacuum sewerage, taking advantage of the system's requirement for small bore sewer pipes laid in shallow trenches, dramatically reducing the requirement for pumping ...
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