Introduction to Plumbing 2

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Introduction to Plumbing 2. Here are some things we must consider in the planning process before we begin plumbing:. Materials & Fittings What to buy Quantity Cost Where to get them When to buy i.e. before work starts Blue print; this tells us the number and length of pipes needed.
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Introduction to Plumbing 2Here are some things we must consider in the planning process before we begin plumbing:
  • Materials & Fittings
  • What to buy
  • Quantity
  • Cost
  • Where to get them
  • When to buy i.e. before work starts
  • Blue print; this tells us the number and length of pipes needed.
  • What must we consider when we begin buying our materials? Discuss and make a list with a friend.
  • COST
  • DURABILITY: Will they break easily?( – if they do NOT then they are durable)
  • WORKABILITY: Will they be easy to use in construction? (Light to carry, portable, flexible and how long will it take to place pipes?)
  • SUSTAINABILITY: Will they last a long time? (Or will they have to be replaced a lot which can be expensive)
  • MAINTENCE: Are they easy to maintain or repair?
  • ?
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  • There are 3 typesof pipe we could use:
  • GI Pipes can be used for internal work of a building. They are laid perfectly vertical and horizontal and kept 1.5 cm clear of the wall.
  • Cast Iron pipes are available in long lengths. They have water tight joints and can withstand high pressure and external load. They are corrosion resistant to most natural soils.
  • PVC Pipesarelight in weight, durable and portable.
  • We usually use PVC pipesDrawing the Blue PrintHere is how you calculate a rough layout plan or blue print:
  • Sketch out the new building, supply tank and septic tank, roughly to scale.
  • Mark out in chalk the route of the basin, sink and toilet etcwill be placed.
  • Plan out waste water and supply water plans separately (never connect these two)
  • Get a steel measuring tape (or more accurate equipment e.g. ‘Smart measure’ or ‘Geo measure apps)
  • Measure route for both supply pipes and discharge pipes in the new building (vertical and horizontal).
  • Mark on the sketch and then total up the amount of pipe needed.
  • Also mark when you will need joints or fittings and what type you will need.
  • Now calculate your own rough layout plan, we will need to use this in our next exerciseIts now time for an activity!
  • Group exercise: Using your blue print calculate the total amount of pipes and fittings you need. Record this information in a table, then visit your local retailer and calculate the total cost of all these materials. E.g:
  • It’s now time for our next activity!
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