install discharge pipes

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INSTALL DISCHARGE INSTALL DISCHARGE PIPESPIPES

BCPCM 3002ABCPCM 3002A

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OH&SOH&S

OVERALLSOVERALLSBOOTSBOOTSEYE PROTECTION EYE PROTECTION SAFETY HELMETSSAFETY HELMETSGLOVESGLOVESHEARING PROTECTION HEARING PROTECTION DUST MASKSDUST MASKS

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OH&SOH&S

HANDLING HANDLING MATERIALSMATERIALS

Follow procedures and Follow procedures and adhere to OH&S adhere to OH&S requirements.requirements.

Lifting equipment Lifting equipment should be used when should be used when required required

ELEVATED WORK ELEVATED WORK PLATFORMSPLATFORMS

Operators should be Operators should be familiar with familiar with equipment.equipment.

Appropriate PPE should Appropriate PPE should be worn at all times be worn at all times when working in a when working in a basket of a EWPbasket of a EWP

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Discharge Vs. DrainageDischarge Vs. Drainage

Discharge pipes convey the waste water Discharge pipes convey the waste water from fixtures to the drainage system.from fixtures to the drainage system.

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Discharge Vs. DrainageDischarge Vs. Drainage

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FACTORS IN SELECTION OF FACTORS IN SELECTION OF MATERIALSMATERIALS

Type of usageType of usageClass of dischargeClass of dischargeProperties of liquids conveyedProperties of liquids conveyedSoil type and conditionSoil type and conditionEnvironmental factorsEnvironmental factorsTemperatureTemperatureCharacteristics of materials and productsCharacteristics of materials and products

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Type of usageType of usage

Various productsVarious productsVarious locations (under ground/floors)Various locations (under ground/floors)

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Properties of liquidsProperties of liquids

Household waste (kitchen/bathroom/toilet)Household waste (kitchen/bathroom/toilet) Industrial waste (grease/fat/oil/acid. Trade Industrial waste (grease/fat/oil/acid. Trade

waste)waste)

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Soil type and conditionSoil type and condition

Acidic soilsAcidic soilsHigh levels of Alkaline High levels of Alkaline High levels of saltHigh levels of salt

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Environmental factorsEnvironmental factors

Exposed to sunlightExposed to sunlight Installed in an area where they can be Installed in an area where they can be

easily damaged.easily damaged.Exposure to chemicalsExposure to chemicals

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Temperature Temperature

Hot waste (dishwashers or glass washers)Hot waste (dishwashers or glass washers)Additional support and allowance for Additional support and allowance for

expansion and contractionexpansion and contraction

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CHARECTERISTICS OF CHARECTERISTICS OF MATERIALS AND PRODUCTSMATERIALS AND PRODUCTS

What are some of the characteristics of What are some of the characteristics of the various types of pipe?the various types of pipe?Expansion ratesExpansion ratesDurabilityDurabilityPricePriceResistance to chemicalsResistance to chemicalsSuitability to particular types of wasteSuitability to particular types of wasteAS 3500.2 SECTION 2AS 3500.2 SECTION 2

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AS 3500 2.2AS 3500 2.2

Use of regulations Use of regulations Discuss dot points as listed on page 11 of your unit Discuss dot points as listed on page 11 of your unit

notes.notes.You need to be able to understand where we find You need to be able to understand where we find information in the Australian Standardsinformation in the Australian Standards

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Where do we find a trap?Where do we find a trap?

Traps are located under Traps are located under basins, sinks, showers, basins, sinks, showers, baths etcbaths etc

The plumbing code states The plumbing code states “The drainage discharge “The drainage discharge pipe from all sanitary pipe from all sanitary fixtures will be fixtures will be constructed with a trap, constructed with a trap, or a self sealing or a self sealing mechanical device”mechanical device”

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TRAPPING THE FIXTURETRAPPING THE FIXTURE

One type of trap is installed after the One type of trap is installed after the fixture is installed.fixture is installed.

One type of trap is formed in the fixture One type of trap is formed in the fixture as part of the manufacturing, for as part of the manufacturing, for example. (Urinals, Pans etc) This type is example. (Urinals, Pans etc) This type is called an integral trapcalled an integral trap

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S and P trapsS and P traps

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S traps clear waste water to a vertical pipeS traps clear waste water to a vertical pipe

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P traps deliver waste water to a horizontal P traps deliver waste water to a horizontal pipepipe

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How do they work?How do they work?

A “U” shaped bend forms a water seal to A “U” shaped bend forms a water seal to prevent odours, bacteria's and sewer prevent odours, bacteria's and sewer gasses from pipe system coming back into gasses from pipe system coming back into buildings.buildings.

Read A.S. 3500 CL. 6.4.2 Retained Water Read A.S. 3500 CL. 6.4.2 Retained Water SealSeal

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How does it work?How does it work?

A “U” bend in the pipe helps to maintain a A “U” bend in the pipe helps to maintain a water seal that prevents the gas from the water seal that prevents the gas from the sewer getting back through the fixture.sewer getting back through the fixture.

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What is the water seal?What is the water seal?

The water will discharge The water will discharge once it gets to the once it gets to the spill level. spill level.

The “U” shaped pipe The “U” shaped pipe under that will hold a under that will hold a water sealwater seal

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THE WATER SEALTHE WATER SEAL

The designed depth of the water The designed depth of the water seal in a W.C. and other 100 mm seal in a W.C. and other 100 mm

traps is 50mm, +/- 5mm and traps is 50mm, +/- 5mm and 75mm (-5 +35mm) for all other 75mm (-5 +35mm) for all other

fixture traps.fixture traps.

After a fixture has been used and After a fixture has been used and the discharge of water completed, the discharge of water completed,

the trap must maintain a water the trap must maintain a water seal with a 25mm min. depth.seal with a 25mm min. depth.

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THE WATER SEALTHE WATER SEAL

How much water is How much water is required to make a required to make a seal?seal?

Look up in your regs!!Look up in your regs!!

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PARTS OF THE FIXTURE PARTS OF THE FIXTURE TRAPTRAP

InletInlet Water sealWater seal CrownCrown Crown weirCrown weir Outlet Outlet

Look up the definition of a Look up the definition of a fixture trap in your plumbing fixture trap in your plumbing codecode

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Name the partsName the parts

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Name the partsName the parts

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WHAT STOPS THE WHAT STOPS THE STINK?STINK?

How are sewer gasses stopped How are sewer gasses stopped from entering the room from these from entering the room from these

pipes?pipes?

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INSTALL DISCHARGE PIPESINSTALL DISCHARGE PIPES

Please continue from here as the question Please continue from here as the question follow thisfollow this

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QUESTIONSQUESTIONS

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1/1/ Should the discharge pipe, be connected Should the discharge pipe, be connected to a fixture, before or after the fixture is fixed in to a fixture, before or after the fixture is fixed in place ?place ?

Depending on the circumstances it may be Depending on the circumstances it may be necessary to install the discharge pipe before necessary to install the discharge pipe before the fixture has even been installed. In some the fixture has even been installed. In some instances it may be considered a better option if instances it may be considered a better option if the pipe is installed after the fixture has been the pipe is installed after the fixture has been installedinstalled

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INSTALL DISCHARGE PIPESINSTALL DISCHARGE PIPES2/2/ List 6 factors, that may determine the List 6 factors, that may determine the

materials suitable for a given job.materials suitable for a given job. Type of usageType of usage Class of dischargeClass of discharge Properties of liquids Properties of liquids

conveyedconveyed Soil type and conditionsSoil type and conditions Environment factorsEnvironment factors TemperatureTemperature

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3/3/ Copper pipe is available in different Copper pipe is available in different ‘types’. Which ‘type’ has the thickest ‘types’. Which ‘type’ has the thickest wall wall thickness ?thickness ?

Type ‘A’Type ‘A’

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4/4/ In reference to the discharge pipe, In reference to the discharge pipe, what what information could you gain from information could you gain from a site a site inspection ?inspection ?

Environmental factors such as:-Environmental factors such as:- exposed to excessive heat from the sun or other heat exposed to excessive heat from the sun or other heat

source, source, such as a furnace in a factorysuch as a furnace in a factory damaged by a vehicledamaged by a vehicle at a factory where a forklift could crash into the unprotected at a factory where a forklift could crash into the unprotected

pipepipe having exposure to corrosive chemicals such as acidshaving exposure to corrosive chemicals such as acids

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5/5/ When installing a pipe that is to pass When installing a pipe that is to pass through a timber beam, why is it through a timber beam, why is it

regarded better practice to position the regarded better practice to position the pipe through the centre, rather than pipe through the centre, rather than cutting out the side of the timber ?cutting out the side of the timber ?

As cutting through the side has the As cutting through the side has the potential of weakening the overall potential of weakening the overall structure.structure.

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6/6/ Calculate the fall of a 50mm Calculate the fall of a 50mm discharge discharge pipe which is to be run 2.8 pipe which is to be run 2.8 metres, at metres, at the minimum grade the minimum grade allowable by the allowable by the AS 3500.2.AS 3500.2.

70mm70mm

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7/7/ When creating a material list to be used in When creating a material list to be used in the ordering of materials, what should the ordering of materials, what should

you specify in the structure of your list ?you specify in the structure of your list ?

QuantityQuantity SizeSize MaterialMaterial Any detail Any detail (e.g. DN 100 copper or DN 80 PVC)(e.g. DN 100 copper or DN 80 PVC)

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8/8/ Why is it important to check materials Why is it important to check materials off, which have been delivered to you off, which have been delivered to you at the work site ?at the work site ?

To ensure what you had ordered is in To ensure what you had ordered is in fact what you receivedfact what you received

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9/9/ When you are about to fit the end of When you are about to fit the end of a a pipe into a fitting such as a bend, why pipe into a fitting such as a bend, why

is it important to make sure the end is it important to make sure the end of of the pipe has been cut off squarely ?the pipe has been cut off squarely ?

To make sure the pipe is pushed all To make sure the pipe is pushed all the the way into the socketway into the socket

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10/10/ According to the AS 3500.2, what are According to the AS 3500.2, what are the 2 methods for testing discharge the 2 methods for testing discharge pipes ?pipes ?

The hydrostatic water testThe hydrostatic water test The air testThe air test

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11/11/ With regards to an air pressure test, With regards to an air pressure test, what is the pressure the pipeline what is the pressure the pipeline

must must be subjected to and what is the be subjected to and what is the minimum hold time required ?minimum hold time required ?

Pressure of 15 kpaPressure of 15 kpa Hold time of 3 minutes minimumHold time of 3 minutes minimum Can drop a max of 2Kpa from 15kpa to Can drop a max of 2Kpa from 15kpa to

13Kpa within the 3 minutes test time. 13Kpa within the 3 minutes test time.

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THE ENDTHE ENDTHANK YOUTHANK YOU

install discharge pipes

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