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water mains

A water supply network or water supply system is a system of engineered hydrologic and hydraulic components that provide water supply. A water supply system typically includes the following:

A drainage basin (see water purification – sources of drinking water)
A raw water collection point (above or below ground) where the water accumulates, such as a lake, a river, or groundwater from an underground aquifer. Raw water may be transferred using uncovered ground-level aqueducts, covered tunnels, or underground water pipes to water purification facilities.
Water purification facilities. Treated water is transferred using water pipes (usually underground).
Water storage facilities such as reservoirs, water tanks, or water towers. Smaller water systems may store the water in cisterns or pressure vessels. Tall buildings may also need to store water locally in pressure vessels in order for the water to reach the upper floors.
Additional water pressurizing components such as pumping stations may need to be situated at the outlet of underground or aboveground reservoirs or cisterns (if gravity flow is impractical).
A pipe network for distribution of water to consumers (which may be private houses or industrial, commercial, or institution establishments) and other usage points (such as fire hydrants)
Connections to the sewers (underground pipes, or aboveground ditches in some developing countries) are generally found downstream of the water consumers, but the sewer system is considered to be a separate system, rather than part of the water supply system.Water supply networks are often run by public utilities of the water industry.

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  1. B

    Water Mains Calculation/Formula

    Evening all, I am currently quoting for a refurbishment of 10 apartments which are currently offices. Each flat will need its own metered water supply to feed a direct 160 litre unvented cylinder which feeds one bathroom in each apartment. The building currently has 2 x 25mm water mains...
  2. C

    Water Mains

    Hi, I need to replace the lead pipes with copper within the house, a little confused as I have like a hose pipe (but more rigid) from the stopcock, which then connects back into the lead. I think it's a 22mm compression straight, which sits half in the stopcock and the other connects onto...
  3. cr0ft

    Finding a leak on water mains in garden

    Hi all, Been phoned by a building company we work for. The customer definitely has a leak on the supply pipe (somewhere between the water mains and the internal stopcock). Are there any tools we can hire/use to help us pinpoint the exact location at all?? I assume not as the pipe will be...
  4. cr0ft

    Installing new water mains to house

    Hi all. Happy with the regulations for this but my question is, for a concrete screed, is it just a case of digging up what you need to both inside and out, fitting the service duct, running pipe in. Seal duct at both ends then relay concrete floor as required? What about the DPC?
  5. S

    old lead water mains

    just thought id ask if any of you guys carry stock for old lead water pipes???? busted an old lead water main the other day first one ever and had to crimp the pipe over to stop it!!! wasn't carrying any plumbing gear so had to rush about looking for 25mm lead to 20mm MDPE fittings and pipe...
  6. R

    Pre-Planning and future proofing water mains

    Greetings all. I am starting a new farm on some land which is 100m away from the water mains. What size diameter pipe of MDPE should I plan for? 25mm or 32mm? Initially I have permission for a caravan, which Im sure 25mm will do fine, however when it comes to building a new house I dont want...
  7. B

    water mains

    can anyone advise on the following . the landlord I do some work for owns a terrace hose - the mains stop tap is in the pavement infront of the house this enters under the front door and goes to 15mm copper this runs under suspended floor through to back living room in the screed floor into the...
  8. W

    There are burst water mains are there are burst water mains..

    Water Main Break in L.A. Nov 02, 2009 - YouTube Water Main Break in L.A. Nov 02, 2009
  9. C

    plumber in telford who can repair water mains?

    any plumbers in telford area who work on water mains contact me please or does anybody no a national company that would undertake such work?
  10. P

    new water mains

    Hi just a quick question, may sound a bit dumb but can you run new mains supply above ground outside of house?
  11. P

    water mains burst

    burst water mains turns roads into local streams good to see the evidence of massive investments...not.... the private water companies are making to keep the system in good shape...
  12. D

    Water mains box

    So i was connecting a few mains pipes into a toby box manifold and one of them is leaking.. Must be a bad rubber inside it. They are push fit connections and i can't get the pipe out now that it's in to investigate :/ Does anyone know if there is a tool for taking the pipe out or a way of...
  13. F

    Cold water mains pipe burst in cold weather - could be prevented with heating?

    Just a general question but where a cold water mains pipe burst in our loft which did not have any lagging at all, could this have been prevented by having the heating on? Much appreciated. Cheers, David
    • familyguy
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    • burst cold cold water cold weather could heating insulation mains pipe pipes should water water mains weather
    • Replies: 19
    • Forum: Plumbing Jobs | The Job-board
  14. L

    is it dangerous to turn off your water mains(due to a dripping tap in kitchen) and :

    keep the boiler on? I have a biasi combi boiler! Not sure whether i have done the right thing. My plumber wants too much and cant afford too pay it yet so have turned off the dripping tap for now from the mains under the sink...but it is still dripping!(even though i have turned open all the...
    • luckyloufire
    • Thread
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    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  15. D

    Just been told to introduce meself, so here I am

    Well, my name is Derrick, I used to work at LHR for 26 years, you name it I did it there, firemains, fresh/foul water, pit cleaning, jetting, at height, confined spaces, subways, tunnels, pumping chambers, laying firemains, repairing firemains and domestic water mains, fault finding, wave on...
    • Derrick229
    • Thread
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    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  16. M

    advice needed on the tech side of boilers

    hi ,gents and ladies . i have been a plumber for some 30 years and have worked on conventional systems ( pumps cylinders divertor valves etc ) and general plumbing ,i am now looking to move to a different job , fed up with digging up water mains and crawling through lofts and voids under floors...
    • mark ba
    • Thread
    • advice boiler boilers cheap combi combi boiler cylinder flow google head job mains needed newbie oil plumber plumbing test valves van water water mains
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  17. D

    Anyone need a retired plumber ?

    I'm a retired plumber in West London I have 26 years working at LHR various jobs, fresh water mains, firemains, foul pits, confined spaces, BA work, working at height, showers, tanks, jetting, anything you see in a terminal or dont see, most of its behind the scenes (basicly the same as you...
    • Derrick229
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    • anyone bath code gas gas safe job jobs mains pipe pipes pipework plumber plumbers radiator radiator valves retired safe showers system valves wanted water water mains work
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  18. D

    frozen condensate pipes - how big a problem?

    can anybody help me with a bit of research? Out of the total number of boilers you service or repair, what percentage would you say you get called out to because of frozen or blocked condensate devices?
    • delg
    • Thread
    • boiler boilers branch cold condensate frozen hose mains pipe pipes plumbers problem soil traps vent water water mains winter
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  19. P

    outside water mains shut off??

    Hi there, just been to a property to install new stopcock and make changes to fit a dishwasher. Thought it would be a good idea to check outside and look if there would be any extra problems rising... looked for the cover and found that nearly every house had the round cover with a meter and...
    • pekemoon
    • Thread
    • dishwasher install mains merchant metal outside plumbing stop cock stopcock tap tools valves water water mains work
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  20. M

    Flexible hoses on towel rad is it ok...?

    Hi all...... I will be fitting a towel rail type rad inplace of my existing rad. As it will only be a few inches away would it be ok to use flexi hoses, they will be under the floor and only the connection will be seen as it comes out of the floor into the rad valves...? is this ok or...
    • mmmadman
    • Thread
    • burst cold cold water copper courses drainage flexible flush gas gas pipe heating hose hoses job jobs pipe plumbing polish question rubber system towel towel rad towel rail video waste water water mains
    • Replies: 20
    • Forum: Plumbing Jobs | The Job-board
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