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Exam revision materials for Plumbing Level 2&3 and ACS Gas Safety test

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Sanitary Appliances

Kitchen Sinks by Materials

Stainless Steel

  • installation top edge height is 865mm
  • stainless still requires earth continuity cross bonding
  • the most popular on the market–in fact, according to Franke 70% of all sinks are made using stainless steel.
  • Stainless steel is classified in terms of gauge:
    • Lower gauge steel is heavier
    • higher gauge is lighter
  • residential sinks are usually between 18 and 22. In terms of inches, this means the steel sheeting used to make the sinks has a thickness that ranges from .048″ to .030″.
  • a heavier gauge sink can be slightly more resistant to denting and is typically less noisy
  • it can be difficult to keep them looking immaculately clean at all times. However, they offer excellent resistance to heat and stains.
  • waste size: 92mm
  • Waste pipe min size is 40mm
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Cast Iron

  • cast iron sinks receive a heavy porcelain enamel finish
  • Porcelain enamels also have good resistance to light and fading
  • It’s heavy. An average-sized iron sink can easily weigh 100 lbs or more, which is 2-3 times as much as most stainless steel sinks
  • Cast iron can be much more expensive than stainless steel
  • the enameling of a cast iron sink can chip, but modern porcelain enamel is strong
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  • usually granite or quartz composite
    • made by combining crushed granite or quartz with a resin filler
    • it’s usually around 70%-80% rock and 20%-30% resin
  • highly resistant to stains and scratching
  • granite tends to hold up better than quartz
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  • made by molding a ceramic clay into the shape of the sink and allowing it to dry at a high temperature for a period of up to 40 hours
  • fireclay sinks are generally regarded as being more durable than cast iron
  • the enamel can chip from the impact of a dropped pot or glass
  • Fireclay kitchen sinks fall on the expensive end of the spectrum.
  • the material is most commonly associated with farm sinks (also known as farmhouse or apron sinks)
  • Many people choose fireclay farmhouse sinks for their traditional but timeless styling
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