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  2. BWT (company) - Wikipedia

    en.wikipedia.org/wiki/BWT_(company)

    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).

  3. Uniform Plumbing Code - Wikipedia

    en.wikipedia.org/wiki/Uniform_Plumbing_Code

    Designated as an American National Standard, the Uniform Plumbing Code (UPC) is a model code developed by the International Association of Plumbing and Mechanical Officials to govern the installation and inspection of plumbing systems as a means of promoting the public's health, safety and welfare.

  4. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    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

  5. Standard step method - Wikipedia

    en.wikipedia.org/wiki/Standard_Step_Method

    The same logic applies downstream to determine that the water surface follows an M3 profile from the gate until the depth reaches the conjugate depth of the normal depth at which point a hydraulic jump forms to raise the water surface to the normal depth. Step 4: Use the Newton Raphson Method to solve the M1 and M3 surface water profiles. The ...

  6. Dealkalization of water - Wikipedia

    en.wikipedia.org/wiki/Dealkalization_of_water

    Chloride cycle dealkalizers operate similar to sodium cycle cation water softeners. Like water softeners, dealkalizers contain ion-exchange resins that are regenerated with a concentrated salt solution - NaCl. In the case of a water softener, the cation exchange resin is exchanging sodium (the Na + ion of NaCl) for hardness minerals such as ...

  7. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    the permissible long term average depth of the water table (Dw) on the basis of agricultural drainage criteria; the soil's hydraulic conductivity (Ka and Kb) by measurements; the depth of the bottom of the aquifer (Di) the design drain spacing (L) can be found from the equation in dependence of the drain depth (Dd) and drain radius (r ...

  8. EPANET - Wikipedia

    en.wikipedia.org/wiki/EPANET

    GISpipe, software which is easily used for the analysis, design, and operation of water distribution networks Integrated with GIS system developed by Jinbosoft [10] Urbano Hydra , AutoCAD/Map3D/Civil3D application software used for the hydraulic calculation, analysis, design and operation of water distribution networks.

  9. Hydraulic calculation - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_calculation

    Hydraulic calculations verify that the water flowrate (or water mixed with additives like firefighting foam concentrate) through piping networks for the purpose of suppressing or extinguishing a fire will be sufficient to meet design objectives. The hydraulic calculation procedure is defined in the applicable reference model codes such as that ...